2011_Identification of cutting force characteristics based on chatter experiments

机械英语试题及答案解析一、选择题（每题2分，共20分）1. What is the term for the process of removing material froma workpiece to create a part?A. MachiningB. WeldingC. CastingD. Forging答案：A2. Which of the following is a type of metal cutting operation?A. DrillingB. SolderingC. BrazingD. Annealing答案：A3. The term "CNC" stands for:A. Computer Numerical ControlB. Closed Network CircuitC. Centralized Network CommunicationD. Continuous Numerical Calculation答案：A4. What is the primary function of a lathe?A. To shape woodB. To cut threads on a workpieceC. To bend metal sheetsD. To forge metal答案：B5. In the context of manufacturing, what does "CAD" refer to?A. Computer Aided DesignB. Computer Aided DraftingC. Computer Aided DevelopmentD. Computer Aided Diagnosis答案：A6. Which of the following is a common material used in the production of machine parts?A. PlasticB. CeramicC. AlloyD. Glass答案：C7. The process of joining two pieces of metal by heating them to their melting point is known as:A. SolderingB. BrazingC. WeldingD. Gluing答案：C8. What is the role of a milling machine in the manufacturing process?A. To cut internal threadsB. To shape the surface of a workpieceC. To drill holesD. To create a smooth finish on a surface答案：B9. The term "tolerance" in mechanical engineering refers to:A. The maximum weight of a partB. The acceptable variation in size or shape of a partC. The minimum strength of a materialD. The standard size of a part答案：B10. What is the purpose of a jig in manufacturing?A. To hold workpieces in place during machiningB. To measure the dimensions of a partC. To cut threads on a workpieceD. To provide power to a machine tool答案：A二、填空题（每空1分，共10分）11. The process of shaping metal by applying pressure is known as _______.答案：Forging12. A _______ is a tool that holds a cutting tool and guides it through a specific path.答案：Cutter13. In machining, the term "feed rate" refers to the _______ of the tool relative to the workpiece.答案：Speed14. The _______ is a device that can be used to measure the internal diameter of a hole.答案：Micrometer15. The process of hardening a metal to increase its strength is called _______.答案：Quenching16. A _______ is a machine tool used for shaping a workpiece by removing material.答案：Milling Machine17. The _______ is the process of cutting a workpiece along a straight line.答案：Sawing18. The _______ is a type of machine tool used for cutting internal threads.答案：Tapping Machine19. The _______ is the process of heating and cooling a metalto alter its physical properties.答案：Heat Treatment20. A _______ is a device that holds a workpiece in place during machining.答案：Vise三、简答题（每题5分，共10分）21. Explain the difference between a milling machine and a lathe.答案：A milling machine is used for shaping the surfaceof a workpiece by removing material with a rotating multi-toothed cutter, whereas a lathe is used for shaping a workpiece by rotating it and cutting it with a stationary tool.22. What is the purpose of a jig in the manufacturing process?答案：A jig is a device used in manufacturing to hold a workpiece in a specific position while it is being machined, ensuring accuracy and repeatability in the production process.四、论述题（每题15分，共15分）23. Discuss the importance of precision in mechanical engineering and how it affects the performance of a machine.答案：Precision in mechanical engineering is crucial asit ensures that components fit together correctly andfunction as intended. Inaccurate parts can lead to poor performance, increased wear, and even failure of the machine. Precision is achieved through the use of。

High-speed millingHigh-speed machining is an advanced manufacturing technology, different from the traditional processing methods. The spindle speed, cutting feed rate, cutting a small amount of units within the time of removal of material has increased three to six times. With high efficiency, high precision and high quality surface as the basic characteristics of the automobile industry, aerospace, mold manufacturing and instrumentation industry, such as access to a wide range of applications, has made significant economic benefits, is the contemporary importance of advanced manufacturing technology. For a long time, people die on the processing has been using a grinding or milling EDM (EDM) processing, grinding, polishing methods. Although the high hardness of the EDM machine parts, but the lower the productivity of its application is limited. With the development of high-speed processing technology, used to replace high-speed cutting, grinding and polishing process to die processing has become possible. To shorten the processing cycle, processing and reliable quality assurance, lower processing costs.1 One of the advantages of high-speed machiningHigh-speed machining as a die-efficient manufacturing, high-quality, low power consumption in an advanced manufacturing technology. In conventional machining in a series of problems has plagued by high-speed machining of the application have been resolved.1.1 Increase productivityHigh-speed cutting of the spindle speed, feed rate compared withtraditional machining, in the nature of the leap, the metal removal rate increased 30 percent to 40 percent, cutting force reduced by 30 percent, the cutting tool life increased by 70% . Hardened parts can be processed, a fixture in many parts to be completed rough, semi-finishing and fine, and all other processes, the complex can reach parts of the surface quality requirements, thus increasing the processing productivity and competitiveness of products in the market.1.2 Improve processing accuracy and surface qualityHigh-speed machines generally have high rigidity and precision, and other characteristics, processing, cutting the depth of small, fast and feed, cutting force low, the workpiece to reduce heat distortion, and high precision machining, surface roughness small. Milling will be no high-speed processing and milling marks the surface so that the parts greatly enhance the quality of the surface. Processing Aluminum when up Ra0.40.6um, pieces of steel processing at up to Ra0.2 ~ 0.4um.1.3 Cutting reduce the heatBecause the main axis milling machine high-speed rotation, cutting a shallow cutting, and feed very quickly, and the blade length of the workpiece contacts and contact time is very short, a decrease of blades and parts of the heat conduction. High-speed cutting by dry milling or oil cooked up absolute (mist) lubrication system, to avoid the traditional processing tool in contact with the workpiece and a lot of shortcomings to ensure that the tool is not high temperature under the conditions of work, extended tool life.1.4 This is conducive to processing thin-walled partsHigh-speed cutting of small cutting force, a higher degree of stability, Machinable with high-quality employees compared to the company may be very good, but other than the company's employees may Suanbu Le outstanding work performance. For our China practice, we use the models to determine the method of staff training needs are simple and effective. This study models can be an external object, it can also be a combination of internal and external. We must first clear strategy for the development of enterprises. Through the internal and external business environment and organizational resources, such as analysis, the future development of a clear business goals and operational priorities. According to the business development strategy can be compared to find the business models, through a comparative analysis of the finalization of business models. In determining business models, a, is the understanding of its development strategy, or its market share and market growth rate, or the staff of the situation, and so on, according to the companies to determine the actual situation. As enterprises in different period of development, its focus is different, which means that enterprises need to invest the manpower and financial resources the focus is different. So in a certain period of time, enterprises should accurately selected their business models compared with the departments and posts, so more practical significance, because the business models are not always good, but to compare some aspects did not have much practical significance, Furthermore This can more fully concentrate on the business use of limited resources. Identify business models, and then take the enterprise of the corresponding departments and staff with the business models for comparison, the two can be found in the performance gap, a comparative analysis to find reasons, in accordance with this business reality, the final identification of training needs. The cost of training is needed, if not through an effective way to determine whether companies need to train and the training of the way, but blind to training, such training is difficult to achieve the desired results. A comparison only difference between this model is simple and practical training.1.5 Can be part of some alternative technology, such as EDM, grinding high intensity and high hardness processingHigh-speed cutting a major feature of high-speed cutting machine has the hardness of HRC60 parts. With the use of coated carbide cutter mold processing, directly to the installation of ahardened tool steel processing forming, effectively avoid the installation of several parts of the fixture error and improve the parts of the geometric location accuracy. In the mold of traditional processing, heat treatment hardening of the workpiece required EDM, high-speed machining replace the traditional method of cutting the processing, manufacturing process possible to omit die in EDM, simplifying the processing technology and investment costs .High-speed milling in the precincts of CNC machine tools, or for processing centre, also in the installation of high-speed spindle on the general machine tools. The latter not only has the processing capacity of general machine tools, but also for high-speed milling, a decrease of investment in equipment, machine tools increased flexibility. Cutting high-speed processing can improve the efficiency, quality improvement, streamline processes, investment and machine tool investment and maintenance costs rise, but comprehensive, can significantly increase economic efficiency.2 High-speed millingHigh-speed milling the main technical high-speed cutting technology is cutting the development direction of one of it with CNC technology, microelectronic technology, new materials and new technology, such as technology development to a higher level. High-speed machine tools and high-speed tool to achieve high-speed cutting is the prerequisite and basic conditions, in high-speed machining in the performance of high-speed machine tool material of choice and there are strict requirements.2.1 High-speed milling machine in order to achieve high-speed machiningGeneral use of highly flexible high-speed CNC machine tools, machining centers, and some use a dedicated high-speed milling, drilling. At the same time a high-speed machine tool spindle system and high-speed feeding system, high stiffness of the main characteristics of high-precision targeting and high-precision interpolation functions, especially high-precision arc interpolation function. High-speed machining systems of the machine a higher demand, mainly in the following areas:General use of highly flexible high-speed CNC machine tools, machining centers, and some use a dedicated high-speed milling, drilling. At the same time a high-speed machine tool spindle system and high-speed feeding system, high stiffness of the main characteristics of high-precision targeting and high-precision interpolation functions, especially high-precision arc interpolation function. High-speed machining systems of the machine a higher demand, mainly in the following areas:High-speed milling machine must have a high-speed spindle, the spindle speed is generally 10000 ~ 100000 m / min, power greater than 15 kW. But also with rapid speed or in designated spots fast-stopping performance. The main axial space not more than 0 .0 0 0 2 m m. Often using high-speed spindle-hydrostatic bearings, air pressure-bearing, mixed ceramic bearings, magneticbearing structure of the form. Spindle cooling general use within the water or air cooled.High-speed processing machine-driven system should be able to provide 40 ~ 60 m / min of the feed rate, with good acceleration characteristics, can provide 0.4 m/s2 to 10 m/s2 acceleration and deceleration. In order to obtain good processing quality, high-speed cutting machines must have a high enough stiffness. Machine bed material used gray iron, can also add a high-damping base of concrete, to prevent cutting tool chatter affect the quality of processing. A high-speed data transfer rate, can automatically increase slowdown. Processing technology to improve the processing and cutting tool life. At present high-speed machine tool manufacturers, usually in the general machine tools on low speed, the feed of the rough and then proceed to heat treatment, the last in the high-speed machine on the half-finished and finished, in improving the accuracy and efficiency at the same time, as far as possible to reduce processing Cost.2.2 High-speed machining toolHigh-speed machining tool is the most active one of the important factors, it has a direct impact on the efficiency of processing, manufacturing costs and product processing and accuracy. Tool in high-speed processing to bear high temperature, high pressure, friction, shock and vibration, such as loading, its hardness and wear-resistance, strength and toughness, heat resistance, technology and economic performance of the basic high-speed processing performance is the key One of the factors. High-speed cutting tool technology development speed, the more applications such as diamond (PCD), cubic boron nitride (CBN), ceramic knives, carbide coating, (C) titanium nitride Carbide TIC (N) And so on. CBN has high hardness, abrasion resistance and the extremely good thermal conductivity, and iron group elements between the great inertia, in 1300 ℃ would not have happened significant role in the chemical, also has a good stability. The experiments show that with CBN cutting toolHRC35 ~ 67 hardness of hardened steel can achieve very high speed. Ceramics have good wear resistance and thermal chemical stability, its hardness, toughness below the CBN, can be used for processing hardness of HRC <5 0 parts. Carbide Tool good wear resistance, but the hardness than the low-CBN and ceramics. Coating technology used knives, cutting tools can improve hardness and cutting the rate, for cutting HRC40 ~ 50 in hardness between the workpiece. Can be used to heat-resistant alloys, titanium alloys, hightemperature alloy, cast iron, Chungang, aluminum and composite materials of high-speed cutting Cut, the most widely used. Precision machining non-ferrous metals or non-metallic materials, or the choice of polycrystalline diamond Gang-coated tool.2.3 High-speed processing technologyHigh-speed cutting technology for high-speed machining is the key. Cutting Methods misconduct, will increase wear tool to less than high-speed processing purposes. Only high-speed machine tool and not a good guide technology, high-speed machining equipment can not fullyplay its role. In high-speed machining, should be chosen with milling, when the milling cutter involvement with the workpiece chip thickness as the greatest, and then gradually decreased. High-speed machining suitable for shallow depth of cut, cutting depth of not more than 0.2 mm, to avoid the location of deviation tool to ensure that the geometric precision machining parts. Ensure that the workpiece on the cutting constant load, to get good processing quality. Cutting a single high-speed milling path-cutting mode, try not to interrupt the process and cutting tool path, reducing the involvement tool to cut the number to be relatively stable cutting process. Tool to reduce the rapid change to, in other words when the NC machine tools must cease immediately, or Jiangsu, and then implement the next step. As the machine tool acceleration restrictions, easy to cause a waste of time, and exigency stop or radical move would damage the surface accuracy. In the mold of high-speed finishing, in each Cut, cut to the workpiece, the feed should try to change the direction of a curve or arc adapter, avoid a straight line adapter to maintain the smooth process of cutting.3 Die in high-speed milling processing ofMilling as a highly efficient high-speed cutting of the new method,inMould Manufacturing has been widely used. Forging links in the regular production model, with EDM cavity to be 12 ~ 15 h, electrodes produced 2 h. Milling after the switch to high-speed, high-speed milling cutter on the hardness of HRC 6 0 hardened tool steel processing. The forging die processing only 3 h20min, improve work efficiency four to five times the processing surface roughness of Ra0.5 ~ 0.6m, fully in line with quality requirements.High-speed cutting technology is cutting technology one of the major developments, mainly used in automobile industry and die industry, particularly in the processing complex surface, the workpiece itself or knives rigid requirements of the higher processing areas, is a range of advanced processing technology The integration, high efficiency and high quality for the people respected. It not only involves high-speed processing technology, but also including high-speed processing machine tools, numerical control system, high-speed cutting tools and CAD / CAM technology. Die-processing technology has been developed in the mold of the manufacturing sector in general, and in my application and the application of the standards have yet to be improved, because of its traditional processing with unparalleled advantages, the future will continue to be an inevitable development of processing technology Direction.4 Numerical control technology and equipping development trend and countermeasureEquip the engineering level, level of determining the whole national economy of the modernized degree and modernized degree of industry, numerical control technology is it develop new developing new high-tech industry and most advanced industry to equip (such as information technology and his industry, biotechnology and his industry, aviation, spaceflight, etc. national defense industry) last technology and getting more basic most equipment. Marx has ever said "the differences of different economic times, do not lie in what is produced, and lie in how to produce, produce with some means of labor ". Manufacturing technology and equipping the most basicmeans of production that are that the mankind produced the activity, and numerical control technology is nowadays advanced manufacturing technology and equips the most central technology. Nowadays the manufacturing industry all around the world adopts numerical control technology extensively, in order to improve manufacturing capacity and level, improve the adaptive capacity and competitive power to the changeable market of the trends. In addition every industrially developed country in the world also classifies the technology and numerical control equipment of numerical control as the strategic materials of the country, not merely take the great measure to develop one's own numerical control technology and industry, and implement blockading and restrictive policy to our country in view of " high-grade, precision and advanced key technology of numerical control " and equipping. In a word, develop the advanced manufacturing technology taking numerical control technology as the core and already become every world developed country and accelerate economic development in a more cost-effective manner, important way to improve the overall national strength and national position.Numerical control technology is the technology controlled to mechanical movement and working course with digital information, integrated products of electromechanics that the numerical control equipment is the new technology represented by numerical control technology forms to the manufacture industry of the tradition and infiltration of the new developing manufacturing industry, namely the so-called digitization is equipped, its technological range covers a lot of fields: (1)Mechanical manufacturing technology; (2)Information processing, processing, transmission technology; (3)Automatic control technology; (4)Servo drive technology;(5)Technology of the sensor; (6)Software engineering ,etc..Development trend of a numerical control technologyThe application of numerical control technology has not only brought the revolutionary change to manufacturing industry of the tradition, make the manufacturing industry become the industrialized symbol , and with the constant development of numerical control technology and enlargement of the application, the development of some important trades (IT , automobile , light industry , medical treatment ,etc. ) to the national economy and the people's livelihood of his plays a more and more important role, because the digitization that these trades needed to equip has already been the main trend of modern development. Numerical control technology in the world at present and equipping the development trend to see, there is the following several respect [1- ] in its main research focus.5 A high-speed, high finish machining technology and new trend equippedThe efficiency, quality are subjavanufacturing technology. High-speed, high finish machining technology can raise the efficiency greatly , improve the quality and grade of the products, shorten production cycle and improve the market competitive power. Japan carries the technological research association first to classify it as one of the 5 great modern manufacturing technologies for this, learn (CIRP) to confirm it as the centre in the 21st century and study one of the directions in international production engineering.In the field of car industry, produce one second when beat such as production of 300,000 / vehicle per year, and many variety process it is car that equip key problem that must be solved one of; In the fields of aviation and aerospace industry, spare parts of its processing are mostly the thin wall and thin muscle, rigidity is very bad, the material is aluminium or aluminium alloy, only in a situation that cut the speed and cut strength very small high, could process these muscles, walls. Adopt large-scale whole aluminium alloy method that blank " pay empty " make the wing recently,such large-scale parts as the fuselage ,etc. come to substitute a lot of parts to assemble through numerous rivet , screw and other connection way, make the intensity , rigidity and dependability of the component improved. All these, to processing and equipping the demand which has proposed high-speed, high precise and high flexibility.According to EMO2001 exhibition situation, high-speed machining center is it give speed can reach 80m/min is even high , air transport competent speed can up to 100m/min to be about to enter. A lot of automobile factories in the world at present, including Shanghai General Motors Corporation of our country, have already adopted and substituted and made the lathe up with the production line part that the high-speed machining center makes up. HyperMach lathe of U.S.A. CINCINNATI Company enters to nearly biggest 60m/min of speed, it is 100m/min to be fast, the acceleration reaches 2g, the rotational speed of the main shaft has already reached 60 000r/min. Processing a thin wall of plane parts, spend 30min only, and same part general at a high speed milling machine process and take 3h, the ordinary milling machine is being processed to need 8h; The speed and acceleration of main shaft of dual main shaft lathes of Germany DMG Company are up to 120000r/mm and 1g.In machining accuracy, the past 10 years, ordinary progression accuse of machining accuracy of lathe bring 5μm up to from 10μm already, accurate grades of machining center from 3～5μm, rise to 1～1.5μm, and ultraprecision machining accuracy is it e nter nanometer grade to begin already (0.01μm).In dependability, MTBF value of the foreign numerical control device has already reached above 6 000h, MTBF value of the servo system reaches above 30000h, demonstrate very high dependability .In order to realize high-speed, high finish machining, if the part of function related to it is electric main shaft, straight line electrical machinery get fast development, the application is expanded further .5.2 Link and process and compound to process the fast development of the lathe in 5 axesAdopt 5 axles to link the processing of the three-dimensional curved surface part, can cut with the best geometry form of the cutter , not only highly polished, but also efficiency improves by a large margin . It is generally acknowledged, the efficiency of an 5 axle gear beds can equal 2 3 axle gear beds, is it wait for to use the cubic nitrogen boron the milling cutter of ultra hard material is milled and pared at a high speed while quenching the hard steel part, 5 axles link and process 3 constant axles to link and process and give play to higher benefit. Because such reasons as complicated that 5 axles link the numerical control system , host computer structure that but go over, it is several times higher that its price links the numerical control lathe than 3 axles , in addition the technological degree of difficulty of programming is relatively great, have restricted the development of 5 axle gear beds.At present because of electric appearance of main shaft, is it realize 5 axle complex main shaft hair structure processed to link greatly simplify to make, it makes degree of difficulty and reducing by a large margin of the cost, the price disparity of the numerical control system shrinks. So promoted 5 axle gear beds of head of complex main shaft and compound to process the development of the lathe (process the lathe including 5).At EMO2001 exhibition, new Japanese 5 of worker machine process lathe adopt complex main shaft hair, can realize the processing of 4 vertical planes and processing of the wanton angle, make 5 times process and 5 axles are processed and can be realized on the same lathe, can also realizethe inclined plane and pour the processing of the hole of awls. Germany DMG Company exhibits the DMUVoution series machining center, but put and insert and put processing and 5 axles 5 times to link and process in once, can be controlled by CNC system or CAD/CAM is controlled directly or indirectly.。

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高一经济现象英语阅读理解30题1<背景文章>The market economy is an economic system in which decisions regarding production, distribution, and consumption are guided by the interactions of supply and demand. In a market economy, businesses and individuals are free to make their own economic decisions.One of the key characteristics of a market economy is the role of competition. Competition among businesses leads to lower prices, better quality products, and greater efficiency. When businesses compete, they are forced to find ways to produce goods and services more efficiently in order to lower costs and offer better prices to consumers.Another important aspect of a market economy is the price mechanism. Prices play a crucial role in allocating resources. When the demand for a particular good or service increases, its price tends to rise. This signals to producers that there is a greater need for that product, and they respond by increasing production. Conversely, when the demand for a product falls, its price drops, and producers reduce production.The market economy also promotes innovation. Businesses are constantly looking for new ways to improve their products and processes in order to gain a competitive edge. This leads to the development of newtechnologies and better ways of doing things.In addition, a market economy allows for a wide range of choices for consumers. With many businesses competing for their business, consumers have the opportunity to choose from a variety of products and services at different prices and quality levels.1. One of the key characteristics of a market economy is _______.A. government controlB. lack of competitionC. the role of competitionD. fixed prices答案：C。

Confidencein measurementStatement of conformityin calibration certificatesAbsolute Attention for tomorrow’s worldKistler develops solutions for challenges in measurement technology with a portfolio that comprises sensors, electronics, systems and services. We push the frontiers of physics in fields such as emission reduction, quality control, mobility and vehicle safety: our products deliver top performance to meet the standards of tomorrow’s world, providing the ideal basis for Industry 4.0. This is how we pave the way for innovation and growth – for our customers, and with our customers.Kistler: the byword for advances in engine monitoring, vehicle safety and vehicle dynamics. Our products deliver data that plays a key part in developing efficient vehicles for tomorrow’s world.Measurement technology from Kistler ensures top performance in sport diagnostics, traffic data acquisition, cutting force analysis and many other applications where absolutely reliable measurements are required despite extreme conditions.By supporting all the stages in networked, digitalized production, Kistler’s systems maximize process efficiency and cost- effectiveness in the smart factories of the next generation.ContentKistler calibration services 4Calibration certificates 4Statement of conformity in a calibration certificate 7Decision rule – what does it mean? 8Must a device be “compliant”? 9Standards, norms and references 11Kistler calibration servicesKistler is the world market leader in the field of dynamic measurement technology. Uncompromising quality and maximum precision are our daily goals. This applies both to the products we manufacture and the services we provide. Our comprehensive range of services features several types of calibration: service calibrations, available worldwide at Kistler sites; traceable calibrations, performed by laboratoriesaccredited to DIN EN ISO/IEC 17025; onsite calibrations at our customers’ premises; and in-situ calibrations, if it is impossible to disassemble the measurement setup.Calibration certificates are the visible result of any calibration. They provide information about the unit under test and statethe measurement results with the (extended) uncertainty.Calibration certificatesThe general requirements are defined by ISO 9001:2015, which states (in section 7.1.5.2, Measurement traceability, extract):When measurement traceability is a requirement, or isconsidered by the organization to be an essential part ofproviding confidence in the validity of measurement results, measuring equipment shall be:a) calibrated or verified, or both, at specified intervals, orprior to use, against measurement standards traceable tointernational or national measurement standards; whenno such standards exist, the basis used for calibration orverification shall be retained as documented information; ... This documentation requirement was adapted in DIN ISO/IEC 17025: 2017, the international standard for the accreditation of calibration laboratories.As well as listing the requirements for laboratories, this standard provides valuable information about what customers can expect from the calibration service, and it also describes the related documentation that the customer is entitled to receive.A calibration certificate corresponding to a traceable calibration must be compliant with DIN ISO/IEC 17025: 2017.DIN EN ISO/IEC 17025:2017, 7.8.2 states thata calibration certificate must always include:a) a title (e.g. “Test Report”, “Calibration Certificate” or“Report of Sampling”);b) the name and address of the laboratory;c) the location of performance of the laboratory activities,including when performed at a customer facility or atsites away from the laboratory's permanent facilities, orin associated temporary or mobile facilities;d) unique identification that all its components arerecognized as a portion of a complete report and a clearidentification of the end;e) the name and contact information of the customer;f) identification of the method used; a description,unambiguous identification, and, when necessary,the condition of the item;g) the date of receipt of the test or calibration item(s), andthe date of sampling, where this is critical to the validityand application of the results;h) the date(s) of performance of the laboratory activity;i) the date of issue of the report;j) reference to the sampling plan and sampling method used by the laboratory or other bodies where these arerelevant to the validity or application of the results;k) a statement to the effect that the results relate only to the items tested, calibrated or sampled; the results with,where appropriate,l) the units of measurement;m) a dditions to, deviations, or exclusions from the method;n) identification of the person(s) authorizing the report;o) clear identification when results are from external providers.NOTE: Including a statement specifying that the reportshall not be reproduced except in full without approval of the laboratory can provide assurance that parts of a report are not taken out of context.In addition to these basic requirements, DIN EN ISO/IEC 17025:2017 specifies further requirements and devotesa separate chapter to them in section 7.8.4, Specific Requirements for Calibration Certificates:7.8.4.1 In addition to the requirements listed in 7.8.2,calibration certificates shall include the following:a) the measurement uncertainty of the measurement resultpresented in the same unit as that of the measurand or ina term relative to the measurand (e.g. percent);NOTE According to ISO/IEC Guide 99, a measurementresult is generally expressed as a single measured quantity value including unit of measurement and a measurement uncertainty.b) the conditions (e.g. environmental) under whichthe calibrations were made that have an influence onthe measurement results;c) a statement identifying how the measurements aremetrologically traceable (see Annex A);d) the results before and after any adjustment or repair, ifavailable;e) where relevant, a statement of conformity withrequirements or specifications (see 7.8.6);f) where appropriate, opinions and interpretations (see 7.8.7).DIN EN ISO/IEC 17025:2017 goes on to cover requirements for statements of conformity in a specific section on this subject:7.8.6 Reporting statements of conformity7.8.6.1 When a statement of conformity to a specification or standard is provided, the laboratory shall document the decision rule employed, taking into account the level of risk (such as false accept and false reject and statistical assumptions) associated with the decision rule employed, and apply the decision rule.NOTE: Where the decision rule is prescribed bythe customer, regulations or normative documents,a further consideration of the level of risk is not necessary.7.8.6.2 The laboratory shall report on the statement of conformity, such that the statement clearly identifies:a) to which results the statement of conformity applies;b) which specifications, standards or parts thereof are met or not met;c) the decision rule applied (unless it is inherent inthe requested specification or standard).NOTE: For further information see ISO/EC Guide 98-4.A statement of conformity of this sort can be one short sentence in everyday language.Statement of conformity in a calibration certificateA statement of conformity is included in the certificatein response to requests from many holders of measuring equipment. It indicates whether or not a measuring device complies with specifications (e.g. the manufacturer's specifi-cations) at the end of a calibration.To make this decision, it is necessary to determine the “rule”: the standard mentions a “decision rule”. There is no binding requirement for a statement of conformity. This can be agreed between the calibration laboratory and the device holder/owner, so there are various models for agreements that can be reached. Normative/specifications to be agreed for the statement of conformity:•S tatement of conformity according to 14253-1 •Statement of conformity according to ILAC G9 8-2009 •Statement of conformity according to DAkkS-DKD-5 •Statement of conformity disregarding the measurement uncertainty•Statement of conformity according to individual customer requirementsFrom them, statements about conformity/the decision rule can be derived according to customer requirements . For example:•disregarding the measurement uncertainty•“shared risk”•individual requirements An agreement must be made with the calibration laboratoryif a statement of conformity is requested in the calibration certificate.Various practices are currently applied for the (legal) definition of this agreement:•T he calibration laboratory includes its own wording in the order confirmation; this can also take the form of a small footnote •T he calibration laboratory has a flyer/information letter stating the decision rule, unless agreed otherwise•A wording is included in the calibration laboratory's General Terms and ConditionsIf the calibration laboratory is requested to includea statement of conformity in the calibration certificate,the decision rule should also be specified. Otherwise, thedecision rule notified to the customer in one of the waysdescribed above, or in a similar way, is regarded asan agreement! The most common models for a decisionrule are presented and explained below.Decision rule – what does it mean?When the measurement uncertainty is takeninto account, the measurement result is above the upper error limit. The instrument does not meet the specifications.NOK 512345Case 1Case 1Case 2Case 3Case 4Must a device be “compliant”?The purpose of a calibration is to determine a measurement deviation. Ideally, a measuring device would always display exactly the value that it is measuring.In practice, this is never the case.But when is the device “OK” – and when is it not “OK”?All measuring devices have three basic characteristics:•P recision •R epeatability •L inearityIf a measuring device always measures “wrongly” at the same point in its characteristic curve, this is not a problem: the correct value can be determined with the help of a correction table. In modern devices, the table can be stored in a memory block with automatic correction of the display.Calibration certificates indicate the values determined over the measuring range – the user can correct the measurement results.But many users find that this involves too much expense oreffort, so the Standards Committee was asked to devise an easy way of evaluating the calibration result. Users want to be able to see quickly whether their device is as precise as it was when they bought it. To achieve this, the statement of conformity was introduced.However, there is still no reason not to work with the measured values determined during calibration – the device is not defective.General information about calibrations•D uring calibrations, around 8% of all test and measurementdevices are found to need adjustments or repairs.This figure of 8% does not include:•D evices identified as “defective” when presented to themanufacturer or calibration service (these are often identical).•C ases where the operator knew that there was a failure(malfunction or breakage). The 8% figure refers to devicespresented for “calibration only”, which users did not suspect ofmeasuring incorrectly or inaccurately.•T his number involves a degree of uncertainty, but it is based onevaluation of a large device pool (> 250,000 devices includingover 10,000 different device types, ranging from simplemultimeters to spectrum analyzers and high-end equipment).Training by KistlerCheck out the online version of our training specification:https:///en/services/training/type-9966b28-13-mmk01/Downloaded pdf list of training specificationsThis brochure is a brief summary of some of the information provided in a full-day seminar offered by Kistler.Our seminar offers full insights into standards and references; terms such as accreditation, traceability and measurement uncertainty are explained in detail; and one complete section of the seminar focuses on calibration intervalsand interval calculations.The following documents are the basis and normative reference for this guideline. There are several subordinate documents that may have to be applied.•I nternational Vocabulary of Metrology. Basic and general concepts and associated terms (VIM), August 2012; DIN e.V. (publisher), Burghart Brinkmann (author)•D IN EN ISO 17025:2017: General requirements for the competence of testing and calibration laboratories•D IN EN ISO 10012:2003: Measurement management systems. Requirements for measurement processes and measuring equipment•I LAC-G8:03/2009: Guidelines on the Reporting of Compliance with Specification •I ATF 16949: Quality management system requirements for automotive production and relevant service parts organizations •D IN EN ISO 9001:2015: Quality management systems– Requirements•U KAS M3003: The Expression of Uncertainty and Confidence in Measurement (Edition 4, 2019)•Jäger, Peter: Calibration compendium, ISBN 9783750436039•Jäger, Peter: Anwenderwissen Kalibrierschein und Kalibriermarke, ISBN 9783751995061Standards, norms and references11 961-485e -10.20 © 2020 K i s t l e r G r o u p/solutionsKistler Group Eulachstrasse 22 8408 Winterthur SwitzerlandTel. +41 52 224 11 11Kistler Group products are protected by various intellectual property rights. For more details, visit The Kistler Group includes Kistler Holding AG and all its subsidiaries in Europe, Asia, the Americas and Australia.Find your local contact at 。

全面版：砍伐树木的安全规定英文版Comprehensive Guide: Safety Regulations for Cutting TreesIn order to ensure the safety of workers and prevent accidents during tree cutting activities, it is essential to follow a set of safety regulations. These rules are put in place to protect individuals involved in tree cutting operations and to minimize the risk of injuries.Proper TrainingBefore engaging in tree cutting activities, all individuals involved should undergo proper training to understand the techniques and safety precautions required for the task. This training should cover the use of equipment, identification of hazards, and emergency procedures.Personal Protective Equipment (PPE)It is imperative that all workers wear the appropriate personal protective equipment while cutting trees. This includes helmets, goggles,gloves, ear protection, and sturdy footwear. PPE helps to safeguard individuals from potential injuries caused by falling branches or debris.Inspecting EquipmentBefore starting any tree cutting operation, it is crucial to inspect all equipment thoroughly. This includes chainsaws, ropes, harnesses, and other tools used in the process. Any damaged or faulty equipment should be repaired or replaced immediately to avoid accidents.Clear CommunicationEffective communication among team members is vital during tree cutting activities. Clear instructions should be provided, and signals should be established to ensure coordination and prevent misunderstandings. This helps in maintaining a safe working environment.Safe Work PracticesAdhering to safe work practices is essential to prevent accidents while cutting trees. This includes maintaining a safe distance from falling trees, avoiding working alone, and following establishedprocedures for tree cutting. Additionally, proper tree felling techniques should be employed to control the direction of the tree's fall.Emergency Response PlanHaving an emergency response plan in place is crucial in case of accidents or injuries during tree cutting operations. This plan should outline the steps to be taken in case of emergencies, including first aid procedures, contacting emergency services, and evacuating the area if necessary.Environmental ConsiderationsWhen cutting trees, it is important to consider the environmental impact of the activity. Care should be taken to minimize damage to surrounding vegetation and wildlife habitats. Proper disposal of tree debris should also be carried out in an environmentally friendly manner.Regular InspectionsRegular inspections of trees to be cut should be conducted to assess their condition and identify any potential hazards. This helps indetermining the best approach for cutting the tree safely and minimizing risks to workers and property.By following these safety regulations and guidelines, individuals can ensure a safe and efficient tree cutting operation while minimizing the risk of accidents and injuries. Prioritizing safety is key to a successful tree cutting project.。

机械词汇Piping work: 铺管工程Steam trace: 加热蒸汽管道Cutting: 切割socket weld承插焊接fillet weld角焊,填角焊branch connection分支接续fabrication tolerance.制造容差local heat treatment 局部热处理threaded pipe螺纹管seal welding.密封焊接flange joint 凸缘接头undercut 底切feeder馈电线conduit outlet电线引出口seal fitting 密封接头, 密封配件Screw thread lubricant螺纹润滑剂Seal: 绝缘层weld reinforcement 焊缝补强lock washer 锁紧[止动, 防松]垫圈electrical panel.配电板,配电盘nipple螺纹接头zinc plated.镀锌的ring joint 环接, 围缘接合bolt 螺栓control: 控制器National Electrical Code 全国电气规程 job site 施工现场master schedule 主要图表, 综合图表, 设计任务书, 主要作业表torque wrench 转矩扳手Hard hat：安全帽flange connection.凸缘联接stockpile贮存Goggles：护目镜packing list装箱单crate: 柳条箱purchased material list原材料进货单back-feed反馈wire coil线盘，线卷，NPT thread. 美国规范锥管螺纹cable gland 电缆衬垫terminal block线弧, 接头排接线盒, 接线板, 线夹power drill机械钻connector. 接线器insulated sleeve绝缘套管wire connector接线器wire terminal电线接头control wiring控制线路motor lead电动机引出线power wiring电力布线tender document．提供证件orifice plate.挡板nut 螺母flange gasket 法兰垫片dimensional inspection 尺寸检验burn through 烧蚀piping system.管道系统reinforcement of weld加强焊缝fabrication.制造dye penetrant examination染料渗透实验法magnetic particle examination 磁粉检验 butt weld 对接焊缝girth weld环形焊缝cement lined piping 水泥衬里weld joint 焊缝, 焊接接头spool drawing 管路图, 管路详图spot test 抽查, 当场测试assembly.装配Random Radiography随机射线照相检查radiographic examination 射线照相检查 examination实验erection 架设 arc welding 电弧焊cable tray.电缆盘rigid steel conduit 钢制电线管power control 功率控制 normal bend 法向[法线]弯管control cable控制电缆操纵索grounding conductor 接地导体cable glands: 电缆衬垫exfoliation剥落power receptacle 电力插座junction box 分线箱lighting fixture照明器材 Circuit breaker断路开关race way 电缆管道terminal box接线盒distribution board配电盘, 配电屏receptacle 插座tumble switch.翻转开关,拨动式开关amplifier panel 放大器盘cathodic protection system 阴极保护系统 control console 控制台electrical material电气材料convenience receptacle.电源插座cable gland 电缆衬垫 filler rod焊条shield gas 保护气体TIG： Tungsten-arc Inert-Gas welding 钨极电弧惰性气体保护焊tensile strength 抗张强度shield jig保护夹具high frequency generator.高频发电机welding rod 焊条filler metal 焊料, 焊丝shop fabrication 车间制造field installation 现场安装welding bead 焊道both sides welding.双面焊接residual stress 残余应力electrode 电焊条condensation 冷凝longitudinal.纵向的horizontal line 水平线circumferential joint 周圈接缝nondestructive examination.非破坏性检验, qualification: 合格性construction work施工工程welded joint焊接缝焊接节点gas cutting.气割arc cutting电弧切割grind off 磨掉metallic luster 金属光泽Screwed Piping Joints螺丝状的管接头gouging .刨削槽Bending: 挠曲witness test订货人在场的实验Welding: 焊接Threading: 车缧纹Leveling：校平color identification 彩色识别Alignment：对准,定位调整check against 检查, 核对Fixing：固定Console：控制台cubicle室,箱audit 审计material certificate.材料合格证vertical panel竖直面板power distribution panel 配电盘gauge board仪表板beveling 磨斜棱,磨斜边local panel 现场配电盘grouting 灌浆fabrication 加工,制造instrument rack 计测器支架tank gauge 液面计flushing 冲洗，填缝analyzer分析器piping管道敷设tubing敷设管道cable fitting电缆配件elbow.弯管接头main pipe 主管道bend.弯管弯头solvent 溶剂postweld heat treatment 焊后热处理jig.夹具arc gouging 电弧刨削chipping修琢machining 机械加工bridges.管式桥clamp.夹钳 tack welding 点焊butt welding 对接焊grinder. 磨床commencement.开始gusset plate角撑板, 加固板process pipe 工艺管道land 纹间表面tee 三通管丁字钢 T形梁opening 开口reinforcing pad.补强垫,增强衬板flux 焊剂wet developer 湿显像剂blowhole气泡,气孔inclusion 杂质imperfection 缺陷limitation 限度valve 阀,闸门structural attachment 结构附件tapered allowance 削尖余量tack welding 平头焊接sputter 喷溅scale 废料lateral translation侧向平移weld joint 焊缝, 焊接接头plug.塞fusion 熔融base material基底材料lead foil 铅箔intensifying screen 增光屏, 光增强屏pressure test.压力实验film density.影片密度line number行数leak test漏泄实验plate thickness 筛板厚度restoration修理field fabricated 工地制造的,现场装配的junction box.接线盒flow sheet 流程图vent 放气孔, 通风孔drain 排水管机械专业英语词汇（很全）金属切削 metal cutting 机床 machine tool 金属工艺学 technology of metals 刀具 cutter 摩擦 friction 联结 link传动 drive/transmission轴 shaft 弹性 elasticity 频率特性 frequency characteristic误差 error 响应 response定位 allocation机床夹具 jig动力学 dynamic 运动学 kinematic静力学 static拉伸 pulling分析力学 analyse mechanics压缩 hitting 剪切 shear扭转 twist弯曲应力 bending stress 强度 intensity三相交流电 three-phase AC 磁路 magnetic circles变压器 transformer 异步电动机 asynchronous motor 几何形状 geometrical 精度 precision正弦形的 sinusoid 交流电路 AC circuit机械加工余量 machining allowance变形力 deforming force退火 anneal变形 deformation应力 stress硬度 rigidity 热处理 heat treatment正火 normalizing脱碳 decarburization渗碳 carburization 电路 circuit半导体元件 semiconductor element反馈 feedback 发生器 generator直流电源 DC electrical source 门电路 gate circuit 逻辑代数 logic algebra外圆磨削 external grinding 内圆磨削 internal grinding 绞孔 fraising平面磨削 plane grinding变速箱 gearbox 离合器 clutch绞刀 reamer螺纹加工 thread processing螺钉 screw 铣削 mill铣刀 milling cutter 功率 power工件 workpiece齿轮加工 gear mechining齿轮 gear主运动 main movement主运动方向 direction of main movement进给方向 direction of feed 进给运动 feed movement合成进给运动 resultant movement of feed前刀面 rake face合成切削运动 resultant movement of cutting刀尖 nose of tool合成切削运动方向 direction of resultant movement of cutting前角 rake angle切削深度 cutting depth机械专业词汇：hardenability 淬透性carbide tool 硬质合金刀具alloy tool steel 合金工具钢alloyed cast iron 合金铸铁carbon steel 碳素钢carbon tool steel 碳素工具钢cast iron 铸铁cast steel 铸钢die material 模具材料high alloy steel 高合金钢high carbon steel 高碳钢low alloy steel 低合金钢low carbon steel 低碳钢shock resistant tool steel 抗冲击工具钢nodular graphite iron 球墨铸铁malleable cast iron 可锻铸铁mottled cast iron 麻口铸铁hardenability curve 淬透性曲线hardening capacity 淬硬性（硬化能力）hardness penetration diagram “Ｕ”形曲线hardness profile 硬度分布（硬度梯度）heat treatment procedure 热处理规范heat treatment installation 热处理设备heat treatment furnace 热处理炉heat treatment cycle 热处理工艺周期heat time 加热时间heat system 加热系统heating up time 升温时间heating curve 加热曲线high temperature carburizing 高温渗碳high temperature tempering 高温回火isothermal annealing 等温退火interrupted ageing treatment 分级时效处理local heat treatment 局部热处理overheated structure 过热组织pack carburizing 固体渗碳Oxynitrocarburizing 氧氮碳共渗partial annealing 不完全退火recrystallization temperature 再结晶温度cutting part 切削部分tool angle 刀具角度tool back angle 背前角tool back clearance 背后角tool backlash movement (tool retracting) 退刀tool back wedge angle 背楔角tool base clearance 基后角tool cutting edge plane 切削平面tool cutting edge angle 主偏角tool grinding machine 工具磨床tool geometrical rake 几何前角tool nomal clearance(rake) 法后角（法前角）locating device 定位装置tool orthogonal clearance(rake, wedge) 后角（前角，楔角）locating face 定位面locating pin 定位销（挡料销）locating plate 定位板locating ring 定位圈locating rule 定位尺locating element 定位零件（定位要素）work hardening 加工硬化internal cylindrical grinding machine 内圆磨床internal cylindrical turing 内圆车削internal force 内力internal cylindrical grinding machine with vertica 立式内圆磨床hole scraping (turning,milling, lapping) 刮孔（车孔，铣孔，研孔）hole grinding (slotting,honing, flanging) 磨孔（插孔，珩孔，翻孔）versatile grinding machine 多用磨床versatile lathe 多用车床vertical multi-tool lathe 立式多刀车床precision milling machine 精密铣床spot face 孔口平面drill and countersink 定心钻，中心钻counterbore cutter head 扩孔钻头jig boring machine 坐标镗床jig grinding machine 坐标磨床jig and fixture 夹具fixture of gear cutting machine 齿轮加工机床夹具fixture of milling machine 铣床夹具fixture of grinding machine 磨床夹具fixture of planing machine 刨床夹具fixture of slotting machine 插床夹具vacuum fixture 真空夹具universal fixture (jig) 通用夹具stationary fixture 固定夹具standard fixture (jig) 规范夹具pneumatic fixture (jig) 气动夹具open-side boring and milling machine 悬臂镗铣床magnetic fixture (jig) 磁力夹具locating device (face,element) 定位装置（面，元素）hydraulic fixture (jig) 液压夹具slide gauge 游标卡尺triple action press 三动压力机tow point single action press 双点单动压力机watch press 台式压力机closed type single action crank press 闭式单动（曲柄）压力机one point single action press 单点单动压力机open-back inclinable press 开式双柱可倾压力机four crank press 四曲柄压力机stright side single action double crank press 闭式双点单动双曲柄压力机single piece frame press 整体框架式压力机rocker arm type press 摇臂式压力机top drive sheet metal stamping automatic press 上传动板料冲压自动压力机barrel surface 圆柱形表面antiflowback valve 反流阀reciprocating-screw machine 往复螺旋注塑机single-stage plunger 单级柱塞shot chamber 注射室curing temperature 固化温度shot capacity 注射能力plunger diameter 柱塞直径sectional area of plunger 柱塞面积hydraulic cylinder 液压缸blanking die 冲裁模blanking clearance, die clearance 冲裁间隙blanking force 冲裁力die,stamping and punching die 冲模tonnage of press 压力机吨位shut height of press machine 压力机闭合高度center of die, center of load 压力中心clearance between punch and die 凹凸模间隙tolerance of fit 配合公差shearing force diagram 剪力图peak die load 模具最大负荷clamping force (element, device, piston) 夹紧力（件，装置，活塞）clamp plate (ring) 压板（夹紧环）shearing force (plane) 剪切力（平面）side clearance angle 侧隙角side locating face 侧定位面side-push plate 侧压板shuttle table 移动工作台matrix plate 凹模固定板material removal rate 材料切除率sheet matal 板料blanking die 冲裁模assembling die 复合冲模，装配用模具compound blank and pierce dies 落料冲孔模shaving die 切边模，修边模shankless die 无柄模具scrapless progressive die 无废料连续模return-blank type blanking die 顶出式落料模expanding die 胀形模，扩管模die for special purpose 专用模cavity plate (block) 凹模bend ability 可弯性bend arc 弯曲弧bending angle (line) 弯曲角（线）bending brake (bending machine) 弯板机，拆弯机bending fatigue 弯曲疲劳bending radius 弯曲半径minimum bending radius 最小弯曲半径bending operation 弯曲工序air-bend die 自由弯曲模bending moment diagram 弯矩图blank length of bend 弯曲件展开长度relative bending radius 相对弯曲半径bending equipment for plastics 塑料折弯设备drawing machine 拉拔机drawing numbers 拉伸次数drawing ratio (coefficient,force,speed) 拉伸比（系数，力，速度）foamed (cellular) plastic 泡沫塑料Thermoplastic 热塑性塑料plastic industry 塑料（工业）行业blow molding die for plastics 塑料吹模机standard die components for plastics 塑料模具规范化零部件thermoforming machine for plastics 塑料热成型机transfer mold 传递模foaming mold for plastics 泡沫塑料模型laminating machine 层压机plastic molding press 塑料制品成型压力机parting surface 分型面other plastics converting machine 其它塑料加工机械Draft 脱模斜度compression molding machine 压塑机transfer mold 压注模（也称传递模）extruder double-screw for plastics 塑料加工用双螺杆挤压机ring gate 环形浇口extruder single-screw for plastics 塑料加工用单螺杆挤压机spreader 分流锥ash-type mold 溢出式压缩模portable transfer mold 移动式压注模mold for plastics 塑料成型模具（简称塑料模）fixed transfer mold 固定式传递模mold for thermoplastics 热塑性塑料模edge gate 侧浇口injection mold for thermoplastics 热塑性塑料注射模runner plate 流道板portable transfer mold 移动式传递模insulated runner mold 绝热流道模warm runner mold 温流道模pin-point gate 点浇口submarine gate, tunnel gate 潜伏浇口warm runner plate 温流道板stationary mold, fixed half, fixed die, cover die 定模moving die, movable mold, moving half 动模sprue gating 中心浇口，浇道浇口die-casting die 压力铸造模具（简称压铸模）fixed clamping plate 定模底板moving clamping plate 动模底板support plate, backing plate 支承板movable core 活动型芯baffle 导流块sprue spreader 分流锥（分流器）ejector pin (plate) 推杆（板）ejector pin retaining plate 推杆固定板gate 内浇口air vent 排气槽parting line 分型面feed (gating, runner) system 浇注系统pouring temperature (rate, time) 浇注温度（速度，时间）sprue base (bush, gate, puller) 直浇道窝（浇口套，直接浇口，拉料杆）final forging temperature 终锻温度finishing temperature 终锻温度initial forging temperature 始锻温度flat die hammer 自由锻锤forge furnace 锻炉forge ratio (forge reduction) 锻造比forging crankpress 锻造用曲柄压力机forging die (die steel, drawing) 锻模（锻模钢，锻件图）forging line (load, practice) 锻造生产线（负荷，工艺）forging plane (plant) 锻造面（厂）forging pressure (process, range) 锻造力（工艺，范围）hammer forging die 锤锻模forging heat-treatment 锻件热处理forging temperature interval 锻造温度范围forging tolerance 锻件公差hot forging drawing 热锻件图chip formation 成型切削chip load (force) 切削力drilling and reaming 钻孔和铰孔taper turning 锥度车削external threading 外螺纹车削chuck handle 夹头扳手，夹头钥匙combination chuck 复动夹头shaper and planer 牛头刨床和龙门刨床slotting machine 插床rotary-type bushing 旋转衬（钻）套underlying metal 底层金属perforated electrode 多孔电极electro-chemical machining 电化学加工form electromachining 电加工成形面electric machining 电加工salt bath electrode furnace 电极盐浴炉electrolytic forming machine 电解成形机electrochemical machining 电解加工electrochemical machining tool 电解加工机床electrolytic universal tool and cutter grinder 电解万能工具磨床electrolytic heat treatment 电解液热处理electrohydraulic forming 电液成形electrolytic marking machine 电解刻印机electrolytic surface grinder 电解平面磨spark erosion machining 电火花加工法electrical discharge machining (EDM) 电火花加工electrodischarge cutting machine 电火花切割机electrical discharge machine 电火花加工机床electrical spark-erosion perforation 电火花打孔electrode contact surface 电极接触面electrical discharge forming 电火花成形机laser cutting machine 激光切割机electron beam cutting machine 电子束切割机cavity sinking EDM machines 型腔电火花加工机床travelling-wire EDM machine 线电极电火花加工机床electro-discharge machine tool 电火花加工机床electron beam machining (EBM) 电子束加工electron beam machine tool 电子束加工机床form electromachining 电加工成形面tiny hole spark-erosion grinding machine 电火花小孔磨床spark-erosion cutting with a wire 电火花线切割wire cut electric discharge machine 电火花线切割机encoded transducer 编码传感器compensator 补偿器incremental measuring system 增量测量系统analog control 模拟控制assembly language 汇编语言data processing system 数据处理系统graphic data processing 图形处理linear (circle) interpolator 线形（圆形）插补器DNC－－direct numerical control 直接数字控制a safety loop 保险圈CNC－－computer numerical control 计算机数字控制a wire loop 钢丝圈DPU－－Data Processing Unit 数控处理单元DLU－－Data Loops Unit 数据循环单元cutter saddle 刀架cylinder saddle 鞍形气缸座loop a line 环路法连接线路horizontal spindle 轴式vertical spindle 立轴式travelling-column 行程立柱feedback unit 反馈单元machining center 加工中心tool-storage 刀具存贮ball screw 滚珠丝杠tool changer 刀库machine control unit (MCU) 机床控制单元flexible machining system 柔性制造系统disk operating system (DOS) 磁盘操作系统Microsoft dish operating ssytem (MS-DOS) 微软磁盘操作系统program and data files 程序和数据文件internal and external command 内部和外部文件format a diskette 磁盘格式化diskcopy command 磁盘拷贝命令erase (deletion) command 删除命令create (change, remove) directory 建立（改变，移动）目录hard disk drive (HDD) 硬盘驱动器hard (soft) disk 硬（软）盘standard keyboard 规范键盘color display 彩色显示printer operating procedures 打印机操作程序application window 应用程序窗口batch file 批处理文件control (main,system) menu 控制（主，系统）菜单configuration system file 系统配置文件FMS (flexible manufacturing system) 柔性制造系统CNC (computer numerical control) 计算机数字控制revised feed signal 反进给信号default selection mode 默认选择模式MCU (machine control unit) 控制加工单元ACS (adaptive control system) 自动补偿系统CRT (cathode-ray tube) 显像管process planning 制定工艺过程CIM (computer integrated manufacturing) 计算机集成制造vertical stroke 垂直行程system variable 系统变量accurate die casting 精密压铸air bend die 悬空弯曲模具blank through dies 漏件式下了模calendering 压延成形center gated mold 中心浇口式模具cold chamber die casting 冷室压铸compacting molding 粉末压出成形double stack mold 双层模具duplicated cavity plate 复板模encapsulation molding 注入成形expander die 扩径模family mold 成套制品模具fantail die 扇尾形模具fantail die 鱼尾形模具f。

无损检测常用英文词汇(a) angstrom unit埃a.c magnetic saturation交流磁饱和a.c magnetic saturation交流磁饱和ablution清洗absorbed dose 吸收剂量absorbed dose rate吸收剂量率absorbed dose rate吸收剂量率acceptanc limits验收范围acceptanc limits 验收范围acceptance level验收水平acceptance level 验收水平验收标准acceptance specification 验收规范acceptance standard 验收标准accessories 附件配件辅助设备辅助器材accumulation test累积检测accumulation test 累积检测accuracy 精确度准确度acetone 丙酮acoustic emission (ae) 声发射acoustic emission count声发射计数acoustic emission count（emission count）声发射计数（发射计数）acoustic emission transducer声发射换能器acoustic holography声全息术acoustic impedance声阻抗acoustic impedance matching声阻抗匹配acoustic impedance matching声阻抗匹配acoustic impedance method声阻法acoustic wave声波acoustical lens 声透镜acoustic-ultrasonic声-超声（au）across交叉横过activation活化activity活度additional stress附加应力address地址adequate shielding安全屏蔽adequate shielding适当防护、适当屏蔽ae ae声发射air header集气管air set空气中凝固air supply 气源aisle 过道走廊alarm condition 报警状态alarm level 报警电平alignment 对准定位调整校直alkaline battery碱性电池allowable variation允许偏差容许变化alternating current 交流电aluminum powder 铝粉amount 数量ampere turns安匝数amplifier panel放大器面板amplitude振幅、幅度analyzer分析器anchor bolt锚定螺栓地脚螺栓angle beam method斜射法、角波束法angle beam probe斜探头、角探头angle fitting弯头angle iron角钢角铁angle of incidence入射角angle of reflection反射角angle of spread扩散角angle of squint偏向角、偏斜角angle probe斜探头、角探头angle square角尺angle steel角钢appearance外观application drawing操作图应用图arc cutting 电弧切割arc gouging电弧刨削arc starting 起弧arc welding电弧焊area amplitude response curve面积幅度曲线area amplitude response curve面积振幅响应曲线area of interest 评定区area of interest 评定区、关注区域argon arc welding氩弧焊arliflcial disconlinuity人工不连续性、人工缺陷arrangement diagram布置图arrival time interval（δtij）到达时间差artifact 人为缺陷artificial defect 人工缺陷a-scan 型扫描a-scope 型显示assembly装配at present 目前attenuation coefficient衰减系数attenuator 衰减器audible leak indicator音响泄漏指示器automatic temperature recorder 温度自动记录器automatic testing 自动检测autoradiography自动射线照相术axiality同轴度轴对称性axonometric drawing 轴测图back-feed反馈background背景background target目标本底backwall echo 底波底面回波baiting valve 放料阀band plate 带板barium concrete 钡混凝土barn 靶base fog片基灰雾base material 基底材料basic sensitivity 基准灵敏度bath槽液、浴池、槽bayard-alpert ionization gage 型电离计beam声束、光束beam angle波束角、束张角beam axis声束轴线beam path声程、声束路径beam path location声程定位、声束路径位置beam ratio光束比beam spread声束扩散bellow type波纹管式bend弯管弯头弯曲bending挠曲弯曲bending deformation挠曲变形弯曲变形betatron电子感应加速器beveled edges坡口beveling 磨斜棱磨斜边成斜角bid 投标出价bimetallic strip gage 双金属片计bipolar field双极磁场bisectrix 等分线black and white transmission densitometer 黑白透射密度计black light 黑光，紫外光black light filter 黑光滤波器、黑光过滤片blackbody 黑体blackbody equivalent temperature 黑体等效温度bleakney mass spectrometer 波利克尼质谱仪bleedout 渗出、漏出blind 挡板窗帘blind plate 隔离盲板盲板blinding plate 盲板block up 封堵垫高blowhole 喷水孔通风孔通气孔(气)孔铸孔砂[气]眼气泡bolt 螺栓螺钉bolton 螺栓紧固bonding wire 接合线焊线boost pressure升压both sides welding双面焊接bottom echo底波底面回波bottom plate 底板bottom surface 底面boundary echo 边界回波、界面回波branch connection 分支接续分支连接brand name 商标名称品牌breaking of contact 断接卡bremsstrahlung 轫致辐射bridge 桥broad-beam 宽射束宽（声、光）束brush application 刷涂b-scan b型扫描b扫描b-scan presentation b型扫描显示b-scope b型显示buckle 满扣扣住buckling deformation翘曲变形buried depth 埋深burn through 烧蚀烧穿bus duct 母线槽butt joint 对接butt jointing对接接头butt weld 对接焊缝butt welding 对接焊cable armor 电缆铠装cable channel 电缆槽电缆管道cable fitting电缆配件cable gland 电缆衬垫cable laying电缆敷设cable routing电缆路由选择cable sheath 电缆包皮层cable testing bridge 电缆测试电桥cable tray电缆盘cable trunk 电缆管道电缆主干线calculation sheet计算书calibrated density reference scale 标准密度校验片calibration instrument 校准仪器calorimeter 热量计capillary action 毛细管作用capping ends 顶盖末端carbon steel 碳钢carbon steel tube 碳钢管carrier fluid载液carry over of penetrate渗透剂转入cascade connection 串联连接cassette 暗盒cathode 阴极cathodic protection system 阴极保护系统caulking metal填隙合金[金属](材料)ccd camera 电荷耦合摄像机cement lined piping 水泥衬里管线center bearing bracket 中心支架center line 中心线center plate 中心板拨盘central conductor 中心导体中线（三相四线制）central conductor method 中心导体法centralized 集中的centripetal canting pull rope向心斜拉索certification of fitness 质量合格证书channel bases沟渠基底channel steel expansion ring 槽钢胀圈characteristic curve特性曲线characteristic curve of film 胶片特性曲线characteristic radiation特征辐射标识辐射charge coupled device 电荷耦合器件（简称ccd）check against检查,核对check valve 止回阀chemical fog 化学灰雾chipping 修琢chronometer精密计时表ci 居里cine-radiography 射线(活动)电影摄影术连续射线照相circuit breaker断路开关circular array 圆形阵列circumferential coils 圆环线圈circumferential field 周向磁场环形磁场circumferential joint 周圈接缝circumferential magnetization method 周向磁化法circumferential weld 环焊缝civil engineer 土木工程师civil works 土建工程建筑工程clamp 夹钳clamping fixture 胎具夹具clean 清理clean-up 清除clearing time 定透时间cluster of flaws 密集区缺陷coaxial cable 同轴电缆cockle stairs 螺旋梯coercive force 矫顽力coherence 相干性coherence length相干长度（谐波列长度）coil method 线圈法coil reference 线圈参考（参照线圈）coil size 线圈尺寸coil spacing 线圈间距coil technique 线圈技术线圈法coil test 线圈试验coincidence discrimination 符合性鉴别一致性鉴别cold lap 冷隔cold-cathode ionization gage 冷阴极电离计collar extension 环口collimation 准直collimator 准直器collision碰撞冲突color identification 彩色识别combined colour contrast and fluorescent pene着色荧光渗透剂commencement 开始company 公司comply with 遵守component part构件(组合)零件部件comprehensive analysis and judgement综合分析判断compressed air drying压缩空气干燥compression joint 压接压力接合compression pump 压缩机压气机[泵] compressional wave 压缩波compton scatter 康普顿散射computed radiography(cr)计算机辅助射线成像技术condensation冷凝conducting wire 导线conductive paste 导电膏conduit box[电]导管分线匣conduit entry 导管引入装置conduit outlet 电线引出口connector 接线器连接器console 控制台construction work施工工程consumable insert （焊接）自耗嵌块consumer 用户contact pads 接触垫contactor 触头接触器触点开关content gauge 液位计continuous emission 连续发射continuous linear array 连续线性阵列continuous method 连续法continuous spectrum 连续谱continuous wave 连续波continuously welded (cw) 连续焊contrast 对比度衬度contrast agent对比剂造影剂contrast aid 反差增强剂contrast sensitivity 对比灵敏度contrast stretch 对比度扩展control 控制控制器control cable控制电缆操纵索control console 控制台control echo 控制回波control unit 控制单元control valve控制阀control valve actuator 阀控传动机构control wiring 控制线路convenience receptacle 电源插座convexity 凸面copper intensifying screens 铜增感屏core rod 芯棒corresponding 相应的cotton fibre 棉质纤维couplant 耦合剂coupling 耦合coupling losses 耦合损失coupling medium 耦合介质cr(computed radiography)计算机辅助射线成像技术cracking 破裂裂纹裂化裂解crate 板条箱柳条箱crater crack （焊接）弧坑裂纹creeping wave 爬波蠕变波critical angle 临界角cross section 横截面cross talk 串音cross-drilled hole 横孔crossed yoke 交叉磁轭crystal 晶片晶体c-scan c型扫描c扫描c-scope c型显示c-shape detector c型探测器（x射线实时成像）cubicle室,箱curie point 居里点curie temperature 居里温度curie(ci) 居里current attenuation 电流衰减current flow method 通电法电流法current induction method电流感应法current magnetization method电流磁化法cushion 垫层衬垫cut-off level 截止电平cutting切割cutting opening 切孔切开cw (continuously welded)连续焊dark room packing 暗室包装（在暗室条件下将x射线胶片装入暗盒）data logger 数据记录器datum mark基准点dead zone 盲区死区decay curve 衰变曲线decibel(db) 分贝defect 缺陷defect detection sensitivity 缺陷探测灵敏度defect evaluation zone 缺陷评定区defect resolution 缺陷分辨力definition 清晰度定义delivery 发货demagnetization 退磁demagnetization factor退磁因子退磁系数demagnetizer 退磁装置退磁器densitometer 黑度计密度计density 黑度（底片）密度density comparison strip 黑度比较片密度比较条density strip 黑度比较片密度比较条depth scan 深度扫描description 说明描述design pressure 设计压力detecting medium检验介质detergent remover洗净液去垢剂developer 显像剂显影剂developer aqueous水性显像剂developer dry 干式显象剂developer liquid film 液膜显象剂developer nonaqueous（suspend）非水（悬浮）显象剂developer station 显像工位显影台developing time 显像时间显影时间development 显影differential discriminator (电子)差动式鉴频器diffraction mottle衍射斑点衍射斑纹diffuse indications 扩散指示diffusion 扩散漫射digital detector数字探测器（x射线实时成像）digital display数字显示数显digital image acquisition system 数字图像采集系统digital radiography（dr）数字射线成像技术digital thermometer 数字温度计（用于测定胶片处理液的温度）digital timer for darkroom暗室用计时器（在暗室中可调及报警）dilatational wave膨胀波疏密波dimensional inspection 尺寸检验dip and drain station 浸渍和流滴工位浸渍与滴落台direct contact magnetization直接接触磁化direct contact method 直接接触法direct exposure imaging 直接曝光成像directional beam定向辐射（指定向辐射的工业x射线机）directivity 指向性disassembly and assembly 拆装discontinuity 不连续性distance marker 距离标志distance-gain-size dgs曲线（距离-增益-尺寸曲线）（dgs德文为avg）distribution board配电盘,配电屏dose 剂量dose equivalent 剂量当量dose meter 剂量计dose rate meter 剂量率计double crystal probe双晶探头double probe technique双探头法double skin 重皮double transceiver technique 双发双收法double traverse technique 双光路技术down lead引下线dr（digital radiography）数字射线成像技术dragout 废酸洗液drain 排水管排水沟排水道排水drain time 滴落时间排液时间draught 气流drift 漂移dry developer干式显像剂dry developing cabinet 干式显像柜dry method 干法dry powder干粉dry technique 干法drying 烘干drying oven 干燥箱干燥炉drying station 干燥工位干燥台drying time 干燥时间d-scan d型扫描d-scope d型显示dual element transducers 双晶探头双晶片换能器dual search unit 双探头双探测装置双探测器dual-focus tube 双焦点(x射线)管due date 到期日预定日期duplex wire type image quality indicator 双线型像质指示器双线像质计duplex-wire image quality indicator 双线像质指示器双线像质计duplicate part 备件duration 持续时间dwell time 停留时间dye penetrant 着色渗透剂dye penetrant examination 着色渗透检验dynamic leak test 动态泄漏检测dynamic leakage measurement 动态泄漏测量dynamic radiography 动态射线照相法dynamic range动态范围earth resistance 接地电阻earth wire接地线地线earthing device 接地装置earthing pole接地极echo回波echo frequency 回波频率echo height回波高度echo indication回波指示echo transmittance of sound pressure声压往复透过率echo width回波宽度echodynamic patterns回波动态波型eddy current 涡流涡电流eddy current coil 涡流检测线圈eddy current flaw detector涡流探伤仪eddy current probe 涡流检测探头eddy current testing 涡流检测edge 边缘棱边edge echo棱边回波edge effect 边缘效应effective depth penetration （edp）有效穿透深度有效透入深度effective focus size 有效焦点尺寸effective magnetic permeability 有效磁导率effective permeability 有效磁导率有效渗透率相对渗透率effective reflection surface of flaw 缺陷有效反射面effective resistance有效电阻elastic medium弹性介质elbow弯管接头管肘electric displacement 电位移electric force compounded grease 电力复合脂electric heat tracing 电伴随加热electric machine 电机electric pressure 电压electrical appliance 电器electrical center 电中心electrical material电气材料electrical panel配电板,配电盘electrified带电electrode电极电焊条electrolytic sliver recovery unit 电解银回收装置（从定影液中回收银）electromagnet电磁铁electro-magnetic acoustic transducer电磁声换能器electromagnetic induction电磁感应electromagnetic radiation 电磁辐射electromagnetic testing 电磁检测electro-mechanical coupling factor 机电耦合系数electron linear accelerator 电子直线加速器electron radiography 电子辐射照相术electron volt 电子伏恃electronic linear scans (e-scans) 电子线性扫描electronic noise 电子噪声electronic scanning (e-scans) 电子扫描（e-扫描）electrostatic spraying 静电喷涂e-mail电子邮件:?电子邮箱:embedded part 预埋件嵌入[埋置]部分emission count （声）发射计数emulsification 乳化emulsification time乳化时间emulsifier 乳化剂encircling coils 环形线圈end effect 端部效应端点效应end socket端头,(钢索的)封头energizing cycle 激励周期enfoldment 折迭envelope 包络包迹environment visible light 环境可见光equalizing filter 均衡滤波器平衡滤波器equipment 器材设备equivalent 当量equivalent i.q.i. sensitivity 当量象质指示器灵敏度equivalent method 当量法equivalent nitrogen pressure 等效氮压当量氮气压力equivalent penetrameter sensifivty 当量透度计灵敏度erasabl optical medium 可消光介质erection 架设etching 浸蚀腐蚀侵蚀蚀刻evaluation评定evaluation threshold 评价阈值评定阈event count事件计数event count rate 事件计数率examination 试验检验考试examination area 检验范围examination region 检验区域examine and approve审批exfoliation 剥落脱落exhaust pressure/discharge pressure 排气压力/排放压力出口压力输送压力exhaust tubulation 排气管道expanded time-base sweep 时基线展宽时基扫描扩展expansion bolt伸缩栓,扩开螺栓expansion joint 膨胀节exposure 曝光exposure and darkroom accessories曝光与暗室附件exposure chart 曝光曲线exposure fog 曝光灰雾exposure table 曝光表extended source 扩展源延长源external diameter 外径external diameter of the pipe 管子直径extra fee 额外费用?eye survey 目测fabrication 加工制造fabrication drawing制造图纸制作图fabrication tolerance制造容差facility scattered neutrons易散射中子fall off 脱落false indication 假指示虚假指示伪显示虚假显示family 族系列far field远场fast neutron detectors 快中子探测器fast/slow timing oscilloscope 带快慢调速的示波器fax传真:?fbh 平底孔(缩写)feeder 馈电线feed-through coil 穿过式线圈ferritic 铁素体的field 场（磁场、声场）field fabricated 工地制造的现场装配的field installation 现场安装field instrument 携带式仪表filament 灯丝fill factor 填充系数filler metal 焊料焊丝filler rod 焊条fillet weld 角焊填角焊filling water test 充水试验film badge 胶片剂量计film base 片基film cassette 胶片暗盒film contrast 胶片对比度film density 胶片密度，底片黑度film evaluation scope 底片评定范围film gamma 胶片γ值（胶片灰度系数）film hangers （channel type）槽式洗片架（手工洗片的一种洗片架类型）film hangers （clip type）夹式洗片架（手工洗片的一种洗片架类型）film hangers for manual processing 洗片架（手工洗片的胶片挂架）film marking equipment 胶片标记器材film processing胶片冲洗加工底片处理film processing chemicals 胶片处理药品洗片药品film speed胶片速度(胶片感光速度胶片感光度)film unsharpness 胶片不清晰度film viewer 底片评片灯观片灯底片观察用光源film viewing equipment 评片装置（观片灯）film viewing screen 胶片观察屏filter 滤波器滤光板过滤器final test 最终检验fire barriers防火间隔防火屏障fixing 固定flange 边缘轮缘凸缘法兰flange connection 凸缘联接flange gasket法兰垫片flange joint 凸缘接头flange sealing surface法兰密封面flash plate闪熔镀层flash point 闪点flat-bottomed hole 平底孔flat-bottomed hole equivalent 平底孔当量flaw 伤缺陷瑕疵裂纹flaw characterization 伤特性缺陷特征flaw echo 缺陷回波flaw height(thru-wall dimension) 缺陷自身高度（缺陷在壁厚方向的尺寸）flexible conduit 软管flexural wave 弯曲波flicker-free images 无闪烁图像floating threshold 浮动阀值floor slab 楼板flow instrument 流量计flow sheet 流程图fluorescence 荧光fluorescent dry deposit penetrant干沉积荧光渗透剂fluorescent examination method 荧光检验法fluorescent light 荧光荧光灯fluorescent magnetic particle inspection 荧光磁粉检验fluorescent magnetic powder 荧光磁粉fluorescent penetrant 荧光渗透剂fluorescent screen 荧光屏fluorography 荧光照相术fluorometallic intensifying screen 荧光金属增感屏fluoroscopy 荧光检查法flushing冲洗填缝flux 焊剂，熔化flux cored arc welding 带焊剂焊丝电弧焊flux leakage field 磁通泄漏场漏磁场flux lines 磁通线focal distance 焦距focal spot 焦点focus electron 电子焦点聚焦电子束focus length 焦点长度聚焦长度focus size 焦点尺寸聚焦尺寸focus width 焦点宽度聚焦宽度focused beam 聚焦束（声束、光束、电子束）focusing probe 聚焦探头focus-to-film distance(f.f.d) 焦点-胶片距离（焦距）fog 灰雾fog density 灰雾密度footcandle英尺烛光formula 公式foundation ring 底圈foundation settlement基础沉降freguency 频率frequency constant 频率常数fringe 干涉带干扰带条纹边缘front distance 前沿距离front distance of flaw 缺陷前沿距离full-scale value 满刻度值full-wave direct current（fwdc）全波直流fundamental frequency 基频furring 毛状迹痕毛皮fusion 熔融熔合fusion arc welded 熔弧焊gage glass 液位玻璃管gage pressure 表压表压力gain增益gamma c amera γ射线照相机（γ射线探伤机）gamma equipment γ射线设备gamma radiographyγ射线照相术gamma ray source γ射线源gamma ray source containerγ射线源容器gamma raysγ射线gamma source γ射线源γ源gamma-ray radiographic equipmentγ射线照相装置gamme ray unit γ射线机γ射线装置gap scanning 间隙扫查间隙扫描gas 气体gas cutting 气割gas shielded arc welding 气体保护焊gate 闸门gating technique 选通技术脉冲选通技术gauge board 仪表板样板模板规准尺gauss 高斯geiger-muller counter 盖革.弥勒计数器generating of arc 引弧geometric unsharpness 几何不清晰度girth weld 环形焊缝gland bolt 压盖螺栓goggles 护目镜gouging 刨削槽gray(gy) 戈瑞grazing angle 掠射角切线角入射余角grazing incidence 掠入射切线入射grind off 磨掉grinder 磨床磨工grinding wheel 砂轮片砂轮groove face （焊缝）坡口面grounding conductor 接地导体group velocity 群速度grouting 灌（水泥）浆guide wire尺度[定距]索,准绳gusset plate角撑板,加固板half life 半衰期half-value layer(hvl) 半值层半价层half-value method 半波高度法半值法half-wave current （hw）半波电流halogen 卤素halogen leak detector 卤素检漏仪hanger 吊架挂架洗片架hard hat 安全帽hard x-rays 硬x射线hard-faced probe硬膜探头硬面探头harmonic analysis谐波分析harmonic distortion 谐波畸变harmonics 谐频谐波head face 端面head wave头波heat absorbing glass 吸热玻璃heat affected area 热影响区heat exchangers 热交换器heat transfer 热传输heating boxes 加热箱helium bombing 氦轰击法helium drift 氦漂移helium leak detector氦检漏仪hermetically tight seal 气密密封密封密封装置high energy x-rays 高能x射线high frequency 高频high frequency generator高频发电机high vacuum 高真空highly sophisticated image processing 高度完善的图像处理hoisting upright column 吊装立柱holography 全息照相术（光全息、声全息）horizontal line 水平线hydrophilic emulsifier 亲水乳化剂hydrophilic remover 亲水性洗净剂亲水性去除剂hydrostatic pressure test水压试验hysteresis磁滞滞后i.f. (intermediate frequency)中频（30～3000千周/秒）iacs =international annealed copper standard国际退火(软)铜标准ice 冰ice chest 冰箱ice machine 制冰机，冷冻机iconoscope 光电摄像管id (①inside ②inside dimensions) ①内径②内部尺寸id coil, id =inside diameter 内径线圈idea概念，意见，思想ideal 理想的，想象的identical 同一的，恒定的，相同的identification 鉴定，辨别，验明identification mark识别标志identifier 鉴别器identify pulse识别脉冲idiopathetic 自发的，特发的iem (ion exchange membrane) 离子交换膜illuminance照（明）度illuminant 照明的，发光的illuminating lamp 照明灯泡illuminating loupe 放大照明镜illuminating mirror 照明镜illumination 照明的，照射illumination apparatus 照明器illumination plate 照明板illuminator①照明器，照明装置②反光镜illuminometer 照度计illustration(abbr. illus.)图解，例证，具体说明image amplifier 图像放大器，影像增强器image analysis system 图像分析系统image contrast 图像对比度影像对比image converter 影像转换器image definition 图像清晰度image enhancement 图像增强image freeze 影像冻结image intensifier 像亮化器，图像增强器image intensifier tube 影像增强管图像增强管image magnification图像放大image monitor 图像监视器image multiplier 影像倍增器image pick-up tube 摄像管image quality 图像质量image quality indication 像质指示image quality indicator （iqi）像质计像质指示器image quality indicator sensitivity 像质指示器灵敏度image reproducer 显像管，显像器image store 图像存储器image tube 显像管imager 图像仪，显像仪imagination 想象imagine 想象，推测，设想imaging line scanner 图像线扫描器图像行扫描器imaging plates（ip）成像板immediate payment 立即付款immersion 浸没，浸渍immersion probe 液浸探头immersion rinse 浸没清洗浸液清洗immersion system 浸渍装置液浸系统immersion testing 液浸试验immersion time 浸没时间浸入时间impact strength 冲击强度impacter 冲击器impedance 阻抗impedance matching 阻抗匹配impedance plane diagram 阻抗平面图impedance transducer 阻抗传感器，阻抗换能器impeller ①叶轮，转子②压缩机imperfection 不完整性缺陷imperial gallon(abbr. ip gal) 英国标准加仑（英制容量单位合4.546升）imperial quart英制夸脱import ①进口②输入import and export firm 进出口商行import border station 进口国境站名import licence position 进口许可证importation ①输入，传入②进口货impression 压迹，印模，版impression technic 印模术impression tray 印模盘impulse 冲动，搏动，脉冲impulse eddy current testing脉冲涡流检测impulse generator 脉冲发生器impulse oscilloscope 脉冲示波器impulse recorder 脉冲自动记录器impulse scaler 脉冲计数器impulse timer 脉冲计数器impulse transmitting tube 脉冲发射管impulser脉冲发生器，脉冲传感器impurity不纯，杂质in (①indium ②inch) ①铟②英寸（等于25.4毫米）in parallel 并联in phase 同相的in series 串联in toto 全，整体in vacuo 在真空中inaction 无作用inadequacy 机能不全，闭锁不全inc. (incorporated) 股份有限公司incandescent lamp 白炽灯inch(abbr.in;in) 英寸incidence ①入射，入射角②发生率incident angle 入射角incident illumination入射光incident light 入射光incident ray 入射光incidental 偶发的，非主要的inclination 倾斜，斜度inclined tube type manometer 斜管式压力计include 包括，计入inclusion 包含包埋杂质incoming line 进线口incompatible 不相容的，禁忌的incompetence 机能不全，闭锁不全inconvertible 不可逆的incorporation ①并入②公司increase 增加，增大，增长incremental permeability 增量磁导率indent 订单index ①指数，索引②指针index card 索引卡片index hand指针index signal指示信号indexer 指数测定仪，分度器indicate 指示，表明indicated defect area 缺陷指示面积indicated defect length 缺陷指示长度indicated light 指示灯indicating bell 指示铃indicating lamp 指示灯indication 指示indicator ①指示器，显示器②指针③指示剂indicator paper 试纸indicatrix指示量，指示线，特征曲线indifferent electrode 无关电极indiffusible不扩散的indirect export 间接出口indirect exposure间接曝光indirect import 间接进口indirect magnetization 间接磁化indirect magnetization method 间接磁化法indirect scan 间接扫查indium(abbr.in) 铟individual 个体的，个别的indoor 室内的induce 引起，感应，诱导induced current method 感应电流法induced electricity感生电，感应电induced field 感应磁场感生场induct 感应，引导，引入inductance 电感，感应系数inductance bridge flowmeter 感应电桥流量计inductance meter 电感测定计induction ①引导，前言②感应，电感③吸气induction apparatus 感应器induction coil 感应线圈inductive transducer 感应传感器inductogram x射线照片inductometer 电感计inductor 感应器，感应机inductorium 感应器inductosyn 感应式传感器industrial exhibition 工业展览会industrial radiographic film drye工业射线胶片干燥器industrial robot 工业机器人industrial x-ray films 工业x射线胶片industrial(abbr.indust.) 业的，产品的industry 工业，产业indutrial x-ray machin工业x射线机inert 惰性的，无效的inference推论，推断infinite无限的，无穷的infinitesimal 无限小的，无穷小的infinity 无穷大，无限，无限距inflame 燃，着火inflammable燃的，易燃的inflation 膨胀，充气，打气inflator 充气机inflow 流入，吸入，进气influence影响，感应influx 流入，注入inform 报告，通告，告诉information 情报，资料，消息，数据information generator 信息发送器information storage unit信息存储器infra-下，低于，内，间infranics 红外线电子学infrared ①红外线的②红外线infrared detector红外线探测器infrared drier 红外线干燥器infrared equipment 红外线设备infrared furnace 红外线炉infrared gas analyzer 红外线气体分析仪infrared heater红外线加热器infrared imaging system 红外成象系统infrared lamp红外线灯infrared laser 红外激光器infrared light 红外线infrared liner polarizer 红外线直线偏振镜infrared photography 红外摄影术infrared radiation 红外线照射infrared radiator 红外线辐射器infrared rays 红外线infrared sensing device 红外传感装置infrared spectrophotometer 红外分光光度计infrared thermography红外热成象红外热谱infrasonic frequency 次声频infrequent稀有的，不常见的inherent 生来的，固有的，先天的inherent filtration 固有滤波inherent fluorescence 固有荧光inheritance 遗传，继承inhibition抑制，延迟，阻滞inhibitor 抑制剂抑制器inhomogeneous 不纯的，不均匀的in-house自身的，内部的initial 开始的，最初的initial charge 起始电荷initial data原始数据initial permeability 起始磁导率初始磁导率initial pulse 始脉冲initial pulse width 始波宽度始脉冲宽度initiator①创造人②引发剂injection 注射，喷射injection syringe注射器injector 注射器，喷射器injector pump 注射泵injury 伤，损伤，损害ink 墨水，油墨ink jet printer 墨水喷射印刷机，喷水式打印机ink jet recorder 墨水喷射记录器ink writer印字机ink writing oscillograph 记录示波仪inlay嵌体，嵌入inlead 引入线inlet 入口，入线，输入inlet port入口inner 内部的innocuous 无害的，良性的innovation 革新，改革innumerable 无数的，数不清的ino- 纤维inoperative 无效的，不工作的inorganic 无机的inorganic chemistry 无机化学inosculation 吻合，联合in-out box 输入-输出盒input 输入，输入电路input buffer 输入缓冲器input coupler 输入耦合器input device输入装置input filter 输入滤波器input impedance输入阻抗input output adapter 输入-输出衔接器input tranformer 输入变压器inscription 标题，注册insert ①插入物，垫圈②插入，植入insert tube嵌入式x射线管inserted coil 插入式线圈inserter 插入器，插入物insertion 插入inset 插页，插图，插入inside内部，内侧，在……里面inside coil 内部线圈inside-out testing 外泄检测泄出检测insignificant 无意义的，轻微的insolation 曝晒，日照insoluble 不溶解的inspection 检查检验inspection 验收，检查，商检inspection certificate 检验证明书inspection fee 检验费inspection frequency 检测频率inspection machine 检验设备inspection medium 检查介质检验介质inspection standard 检验标准inspector①测定器②检验员inspectoscope检查镜inspissator 浓缩器，蒸浓器instability 不稳定性install 安装，装置installation①安装②装置，设备installation fundamental circle 安装基准圆installing 安装，插入instance 例证，实例，情况instantaneous value瞬时值，即时值instead代替，更换instillation 滴注法，灌注institute 学会，协会，研究所institution 机关，机构，学校，制度instruction ①指示，命令②说明，说明书instruction counter 指令计数器instrumenent repairing table器械修理台instrument 仪器，器械，仪表instrument air仪表气源instrument board 仪表板instrument cabinet 器械柜instrument carriage 器械车instrument case 器械箱instrument cover 仪器外表instrument cupboard 器械柜instrument light 仪表信号灯instrument lubricant 器械润滑剂instrument rack器械架仪器架instrument stand 仪器架instrument table 器械台，器械桌instrumental error 仪器误差instrumentation ①器械，设备②器械操作法insulant 绝缘材料insulated cable 绝缘电缆insulated sleeve 绝缘套管insulating oil 绝缘油insulation绝缘，绝热，隔离insulation resistance 绝缘电阻insulator 绝缘体，绝热体insullac 绝缘漆insusceptible 不受……影响的，不接受……的intact 完整的，未受损伤的integral ①积分（的）②完整的integraph 积分仪integrated circuit microelectrode集成电路微电极integrated circuit storage集成电路存储器integrated circuit(abbr.ic) 集成电路integrating dosimeter 累计剂量仪integrating instrument 积分仪，积算仪表integrator 积分仪integrogram 积分图integronics 综合电子设备intellect智力，才智intensifier①增强器②照明装置intensifying factor增感系数intensifying screen增感屏intensimeter x射线强度计intensionometer x射线强度量intensity强度intensity level①强度级（声音）②亮度intensity output声强输出intensive 加强的，集中的，重点的inter- 在……中间，内，相互interaction 相互影响，相互作用，干扰interception 相交，折射（光）interchange 交替，交换interchanger 交换器intercondenser中间电容器intercooler 中间冷却器interdiction 禁止，制止interest 兴趣，关心，注意，利益interesting 有趣的interface （计算机）接口界面interface boundary界面interface echo 界面回波interface trigger 界面触发interfacial tensiometer 界面张力计interfacial tension 界面张力interference 干涉interference absorber 干扰吸收器interference filter①干涉滤波器②干涉滤光镜interference preventer 防干扰装置interference refractometer 干涉折射计interference spectroscope 干涉分光镜interferogram 干涉图interferometer 干涉仪，干扰计interferoscope 干涉镜interior 内部，内部的interior angle welding line joint 内侧角焊缝接头interlayer 夹层隔层intermediate frequency(abbr.i.f.) 中频（300～3000千周/秒）intermission 间断间歇internal energy 内能internal exposure 体内照射internal gauge 内径规international candle 国际烛光international fair 国际博览会international market 国际市场international standard 国际标准international treaty 国际条约international unit(abbr. i.u) 国际单位international(abbr.int.) 国际的，世界的interphase 界面界面interpolation插入，内插法interpretation翻译，解释，说明interpretation解释interpreter 翻译程序，翻译机interrupt 断续，中断interrupter 断流器，断续器interspace空间，间隙，中间interstage amplifier 级间放大器inter-sync 内同步interval 间隔，时间间隔，中断期interval arrival time （δtij) 到达时间差interval timer 限时器intervalometer 定时器，时间间隔计intra- 在内，内，内部intrasonic 超低频intro- 入口，在内introduce①引进，引导②前言，绪论introduction说明书，前言，intromission 插入，输入introscope内腔检视仪，内孔窥视仪invagination 凹入，折入，套叠invasive 侵害的，侵入的invention 发明，创造inventor 发明者，创造者inventory①清单，存货单②设备，机器inversion 转换，逆转inverted cone 倒锥形inverted image倒像inverter 倒相器，交换器，换流器inverting amplifier 倒相放大器inverting eyepiece倒像目镜invest 包埋，围模，附于investigation ①调查，研究②调查报告invisible light filter 不可见光滤光镜invisible spectrum 不可见光谱involuntary 不随意的，偶然的。

Unit 5Section One Tactics for ListeningPart 1 PhoneticsStress, Intonation and AccentScriptListen to Peter talking to Maggie. Is he asking a question or does he just want her to agree Tick the right box.1. You’ve been to Canada, haven’t you ↘2. Oh yes, I remember. You went a couple of years ago, didn’t you ↗3. Now, let’s see ... It’s er, it’s a mainly agricultural country, isn’t it ↘、4. Well yes, I know, but there’s not much industry once you’ve left thecoast, is there ↗5. I see ... Mm, so the North would be the best place to go to, wouldn’t it ↘6. Yeah. Mind you, I should think the South is very beautiful, isn’t it ↘7. (laughs) Yeah. That’s right. Oh and what about transport It’d be betterto hire a car, wouldn’t it ↗8. Really That’s cheap. It costs that much a day here, doesn’t it ↘KeyPart 2 Listening and Note-TakingReadingScriptA. Listen to some sentences and fill in the blanks with the missing words.%1. There is no hard and fast rule, for no two are alike.2. The fact that he or she might later be “bored” when joining a classof nonreaders at infant school is the teacher’s affair.3. If badly done it could put them off reading for life.4. But the task should be undertaken gently.5. Reading should never be made to look like a chore.B. Listen to a talk about reading. Take notes and complete the following summary.When should a child start learning to read and write This is one of the questions I am most frequently asked. There is no hard and fast rule, for no two are alike, and it would be wrong to set a time when all should start being taught the ins and outs of reading letters to form words.If a three-year-old wants to read (or even a two-year-old for that matter), the child deserves to be given every encouragement. The fact that he or she might later be “bored” when joining a class of non-readers at infant school is the teacher’s affair. It is up to the teacher to see that such a child is given more advanced reading material.Similarly, the child who still cannot read by the time he goes to junior school at the age of seven should be given every help by teachers and parents alike. They should make certain that he is not dyslexic*. If he is, specialist help should immediately be sought.(Although parents should be careful not to force youngsters aged two to five to learn to read (if badly done it could put them off reading for life), there is no harm in preparing them for simple recognition of letters by labelling various items in their room. For instance, by a nice piece of cardboard tied to their bed with BED written in neat-big letters.Should the young child ask his parents to teach him to read, and if the parents are capable of doing so, such an appeal should not be ignored. But the task should be undertaken gently, with great patience and a sense of humour.Reading should never be made to look like a chore and the child should never be forced to continue, should his interest start to flag*.KeyA. 1. There is no hard and fast rule, for no two are alike.2. The fact that he or she might later be “bored” when joining a classof non-readers at infant school is the teacher’s affair.3. If badly done it could put them off reading for life.4. But the task should be undertaken gently.5. Reading should never be made to look like a chore.：B. ReadingIt would be wrong to set a time when a child should start learning to read and write. Parents should encourage youngsters aged two to five to readif they show interests in it, but never force them to learn to read. He orshe might later be “bored” when joining a class of non-readers at infantschool. Then it is up to the teacher to see that such a child is given moreadvanced reading material.Similarly, if a child cannot read at the age of seven, teachers and parents should make certain that he is not dyslexic. If he is, specialisthelp should immediately be sought.Parents should not ignore the young child’s appeal to be taught to read.But the task should be undertaken gently, with great patience and a senseof humour. Reading should never be made to look like a chore and the childshould never be forced to continue, if his interests start to flag. Section Two Listening ComprehensionPart 1 Sentence IdentificationScriptIdentify each sentence as simple (S), compound (CP), complex (CPL) or compound-complex (C-C). You will hear each sentence twice. Write the corresponding letter(s) in the space provided.:1. The line down the middle of the road wavered, zigzagged, and then plungedright off the pavement.2. My sister likes classical music, but I prefer the kind she dismisses as “junk.”3. Either you must improve your work or I shall dismiss you.4. Babara and Andrew are sitting under the tree by the river.5. She only hoped that the entire incident would be forgotten as soon as possible.Key1. S2. C-C3. CP4. S5. CPLPart 2 Dialogues、Dialogue 1 Digital SoundScriptA. Listen to the dialogue and compare digital sound and analogical sound.[music]Mike: Wow! Nice. CDs have such good sound. Do you ever wonder how they make CDsKathy: Well, they get a bunch of musicians together, and they sing and play.Mike: Come on. You know what I mean. Why is the sound quality so good I mean, why do CDs sound so much clearer than cassette tapes Kathy: Actually, I do know that.Mike: ReallyKathy: It’s all based on digital sound. CDs are digital. Digital soundis like several photos, all taken one after another. It’s kind oflike pictures of sound. The intensity of the sound — how strong itis —is measured very quickly. Then it’s measured again and ag ain.When we hear the sound, it all sounds like one long piece of sound,but i t’s really lots of pieces close together. And each piece isreally clear.！Mike: So digital is like lots of short “pieces” of sound.Kathy: Exactly. This is different from analog* —that’s how they used to record. Analog is more like one wave of sound. It moves up and downwith volume and pitch. Anyway, analog is like a single wave. Digitalis like a series of pieces.Mike: OK, I understand that. But how do they make the CDsKathy: I told you, Mike. They get a bunch of musicians together, and they sing and play.Mike: Kathy!Kathy: No. What really happens is first they do a digital recording —on videotape.Mike: On videotapeKathy: Yeah, they use videotape. So then the videotape is played through a computer.Mike: OK. What does the computer doKathy: Well, the computer is used to figure out t he “pieces” of sound we were talking about; how long everything is, how far apart spacesare.|Mike: OK. So the computer is figuring out those separate “pieces” of sound.Kathy: Yeah. They need to do that to make the master.Mike: The masterKathy: The master is the original that all the other CDs are copied from.It’s made of glass. It’s a glass disk that spins around — justlike a regular CD. And the glass disk is covered with a chemical.They use a laser to burn the signal, or the song, into the glass plate.The laser burns through the chemical, but not through the glass.Mike: So the laser cuts the sound into the plateKathy: Right. What it’s doing is cutting little holes into the back of the disk. Those holes are called “pits.” The laser puts in the pits.Mike: So CDs really have little holes on the back I didn’t know that.Kathy: Yeah. Tiny pits. They’re too small to see. Anyway, then they’ve got the master, and they make copies from it. Then you buy your copyand put it in the CD player.Mike: Put it in the CD player ... That part I understand.Kathy: There’s another laser in your CD player. The light of the laserreflects off the CD. The smooth part of the CD reflects straight back,like a mirror. But the light that bounces off the pits is scattered.Anyway, the computer in your CD player reads the light that bouncesoff the pits. And you get the music.（Mike: Reflected light, huh ... Uh ... you knew what I like Just relaxing, listening to music, and not really worrying about how it gets on thedisk.Kathy: You want me to explain it again[music]B. Listen to the dialogue again and complete the following outline.C. Listen to an extract from the dialogue and complete the following sentenceswith the missing words.Mike: So the laser cuts the sound into the plateKathy: Right. What it’s doing is cutting little holes into the back of the disk. Those holes are called “pits.” The laser puts in the pits.>Key|B. I. The making of CDsA. Recordinga. First they do a digital recording — on videotape.b. Then the videotape is played through a computer.c. The computer figures out those separate “pieces” of sound to make the master.B. The making of the mastera. The master is the original that all the other CDs are copied from.b. It’s made of glass, covered with a chemical.c. They use a laser to burn the signal, or the song, into the glassplate. The laser burns through the chemical, but not through theglass.,d. It cuts little holes into the back of the disk. Those holes are called “pits.”e. They make copies from it.II. Playing backA. You buy the copy and put it in the CD player.B. The light of the laser reflects off the CD.a. The smooth part of the CD reflects straight back, like a mirror.b. But the light that bounces off the pits is scattered.c. The computer in your CD player reads the light that bounces off the pits.d. You get the music.、C. Mike: So the laser cuts the sound into the plateKathy: Right. What it’s doing is cutting little holes into the back of the disk. Those holes are called “pits.” The laser puts in the pits.Dialogue 2 Lost in TranslationScriptA. Listen to the dialogue. What mistake have some companies made when theyused the same ad in a different country or area Complete the following chart.Man: H ere’s one I wouldn’t have thought of. You know those “before and after” commercials for laundry soapWoman: The ones with a pile of dirty clothes on one side and then the same clothes after they’ve been washed Sure.Man: There was an American company that had one of those ads. It was really successful in North America. In the ad there was a pile ofdirty clothes on the left, a box of the laundry soap in the middle,and a pile of clean clothes on the right. So, the message was thata box of this detergent*would make really dirty clothes clean.Woman: Yeah'Man: So what do you think happened when they used the ad in the Middle EastWoman: I don’t know.Man: Think about it. In the Middle East, languages are written from right to left. People look at things from right to left.Woman: So it looked like the soap made the clothes dirtyMan: “Our soap will make your clothes dirty!” Not a very smart ad campaign.Woman: They should have changed the order of the pictures. They should have put the picture of the clean clothes on the left side and the dirtyclothes on the right.Man: Really. Oh, here’s another one. Some shirt maker put an ad in a Mexican magazine.Woman: AndMan: Well, the ad was supposed to say, “When I wore this shirt, I felt good.” But they made a translation mistake.Woman: What did they say[Man: Instead of “When I wore this shirt,” the ad said, “Until I wore this shirt, I felt good.”Woman: “Until I wore this shirt, I felt good” Gee, changing one little word gave it the opposite meaning.Man: The article says sometimes it’s not just the advertising slogan that gets companies into trouble. Sometimes the company name canscare off business.Woman: What do you meanMan: Well, there was a large oil company in the United States called Enco: E-N-C-O.Woman: Yeah, I remember them.Man: They opened some gas stations in Japan, and they advertised using their American name. Unfortun ately, they didn’t know what the wordmeans in Japanese.Woman: What does it meanMan: “Enco” is a short way of saying “Engine stop” in Japanese.Woman: Great. Would you buy gasoline from a company that said your car engine would stop"Man: No, and neither did the Japanese.KeyPart 3 PassageToothbrushScriptB. Listen to the passage and choose the best answer to each of the questionsyou will hear.Brushing our teeth — such a commonplace activity today, has been around for a long time. Imagine: the ancient Egyptians were already concerned about their dental hygiene! We know this today because they also had the good habit of being entombed* with all their treasures ... So we were able to discover that tombs from 3,000 years before Christ contained small tree branches whose ends had been frayed* into soft fibers. It’s comical to imagine an Egyptian stopping to brush his teeth after a meal, on his break from building a pyramid!The true ancestor of our toothbrush, however, was invented by the Chinese in the 15th century and brought back to Europe by travellers. This toothbrush was made of hairs from the neck of a Siberian wild boar which were fixed to a bamboo or bone handle. The people of the Occident*, however, found the wild boar hairs too stiff. At the time, very few people in the Western world brushed their teeth, and those who did preferred horse hairs, which were softer than those of the wild boar! In Europe, it was more customary after meals to use a goose feather toothpick, or one made of silver or copper.Other animals’ hair was also used for dental car e, right up until this century. But it was the poor Siberian wild boar that took the brunt of it. The animal was imported for its neck hairs for a long, long time ... in fact, until nylon was invented, in the 20th century!In 1937, in the Du Pont laboratories in Nemours, ., nylon was invented by Wallace H. Carothers. In 1938, this new material became a symbol of modernism and prosperity through the commercialization of nylon stockings and of Dr.West’s miracle toothbrush with nylon bristles. The wild boars were finally off the hook!·At first, even if there were many advantages to using this new brush insteadof the one made with wild boar hairs (which fell out, wouldn’t dry very well or became full of bacteria), the consumers were not entirely satisfied. This is because the nylon bristles were very stiff and hurt the gums. In 1950, Du Pont improved their toothbrush by giving it softer bristles.Today the brands, types, and colours of toothbrushes on the market are almost endless. In spite of this, certain African and American populations still use tree branches to care for their teeth!Questions:1. How do we know ancient Egyptians were concerned about their dental hygiene2. What is amusing about the Egyptians3. Who invented the true ancestor of our toothbrush in the 15th century4. Which of the following is not true about the people in the Occident inthe 15th century5. What did people begin to use for dental care in the 20th century6. When were toothbrushes with nylon bristles first made%7. What was the fate of the wild boars when D r. West’s toothbrush with nylonbristles became popular8. Why were the consumers not entirely satisfied with nylon bristles at firstC. Listen to the passage again and discuss the following questions.KeyA. Most are made of soft nylon bristles.B. 1. A 2. B 3. C 4. B 5. D 6. C 7. C 8. D>C. 1. In Egypt, tombs from 3,000 years before Christ contained small treebranches whose ends had been frayed into soft fibers.2. In the 15th century, Europeans usually use a goose feather toothpick,or one made of silver or copper to care for their teeth.3. People used animals’ hair for dental care right up until the 20th centurywhen nylon was invented.4. In 1937, in the Du Pont laboratories in Nemours, ., nylon was inventedby Wallace H. Carothers.5. Certain African and American populations still use tree branches to carefor their teeth.D. 1. Other animals’ hair was also used for dental care, right up until thiscentury. But it was the poor Siberian wild boar that took the brunt ofit.2. In 1937, nylon was invented by Wallace H. Carothers. In 1938, this newmaterial became a symbol of modernism and prosperity. The wild boars werefinally off the hook!Part 4 News，News item 1 Europe’s Migrant CrisisScriptA. Listen to the news item and answer the following questions. Then give abrief summary about the news item.As migrants and refugees continue to rush into Europe, European Union (EU) members held an emergency summit in Brussels.They hope to agree on how to deal with this large movement of refugees and migrants into Europe. The refugees are coming from countries hurt by war and poverty in the Middle East and Africa.News reports say the EU members pledged* to better control European borders from mass migration.The number of refugees could grow into the millions, not thousands, warned the European Union President Donald Tusk.Mr. Tusk is hosting the emergency summit. He said it is “critical*” that European countries end their disagreement over the migrants. He said they need to agree on a plan, in his words, “in place of the arguments and the chaos we have witnessed.”Also at the meeting, the European interior ministers offered new aid to Turkey and other countries that are hosting refugees.Meanwhile, migrants continue to move through European countries toward a preferred final destination. For many, that is Germany or Austria.、B. Listen to the news item again and complete the following sentences.KeyA. 1. Migrants and refugees continue to rush into Europe due to war and povertyin Middle East and Africa.2. EU member states held an emergency summit in Brussels.3. They pledged to better control European borders from mass migration.4. They offered new aid to Turkey because it is one of the countries thatis hosting a large number of refugees.5. It is Germany or Austria.…This news item is about Migrant crisis in Europe.B. 1. At the emergency summit, the EU president sa id that it is “critical”that European countries end their disagreement over the migrant crisis.2. Meanwhile, migrants continue to move through European countries and thenumber grows into the millions, which causes a lot of chaos.C. Mr. Tusk is hosting the emergency summit. He said it is “critical” thatEuropean countries end their disagreement over the migrants. He said they need to agree on a plan, in his wor ds, “in place of the arguments and the chaos we have witnessed.”News item 2 African Nations Seeking Greater Power at UNScriptA. Listen to the news item and decide whether the following statements aretrue (T) or false (F). Then give a brief summary about the news item.@The leaders of Zimbabwe and Equatorial Guinea are calling for African nations to have more power and influence at the United Nations.President Robert Mugabe of Zimbabwe and President Teodoro Obiang Nguema of Equatorial Guinea say the continent should have at least one permanent seat on the powerful . Security Council.The two leaders spoke during a visit to Zimbabwe by Nguema as they prepare for the meeting of the African Union General Assembly later this month in Ethiopia.They also spoke about peace, security and terrorism in Africa. And Nguema said African nations must work to become economically independent, just as they have become politically independent.He said Africa should have two seats on the . Security Council. But the continent should at least have one, he said, with the power to veto*, or cancel, resolutions.The United States, Russia, Britain, China and France have permanent seats on the council, with veto powers. There are also 10 non-permanent members. These nations serve on the Council for two years. They cannot veto resolutions.B. Listen to the news item again and complete the following sentences.Key；1. The leaders of Zimbabwe and Equatorial Guinea are calling for Africannations to have more power and influence at the United Nations.two permanent seats on the powerful . Security Council.terrorism in Africa.President of Zimbabwe said that African nations must work to becomeeconomically independent, just as they have become politicallyindependent.5. There are 10 non-permanent members who serve on the UN SecurityCouncil for two years. They cannot veto resolutions.This news item is about African countries seeking more power and influence at UN.B. 1. President of Equatorial Guinea visited Zimbabwe in preparation for themeeting of the African Union General Assembly later this month inEthiopia.2. Both leaders think African nations should have the permanent seat on theCouncil with the power to veto, or cancel resolutions.$C. And Nguema said African nations must work to become economically independent,just as they have become politically independent.Section Three Oral WorkRetellingA Sailor’s LifeScriptListen to a passage and then retell it in your own words. You will hear the passage only once. You can write down some key words and phrases.In these days of jet travel, when a trans-Atlantic journey is a matter ofa few hours only, it is hard to imagine what travel must have been like a centuryor two ago, when the only means of travelling vast distances was by sailing boat.A sailor’s life must have been hard, indeed. Apart from the dangers of lifeat sea, there must have been extreme boredom to contend with*, because each journey lasted many weeks.>To pass the time, sailors developed hobbies and crafts. Some sailors drew pictures. Others carved things out of wood, or painted. One of the strangest arts that was developed by these sailors of long ago, was the art of puttinga ship into a bottle. And it was an art, because the ships were usuallyfully-rigged*, and stood much taller than the width of the bottle necks through which they had been placed.Section Four Supplementary ExercisesPart 1 PassageInternet Overtaking TV among ConsumersScriptA. Listen to the passage and choose the best answer to each of the questionsyou will hear.The Internet is drawing hordes of people away from their television sets but will have to become more like TV if it wants to boost its mass appeal to consumers, computer industry executives say.In any event, the two media are converging rapidly in a trend that will accelerate when digital broadcasting replaces the dominant analog television system around the world.@In a recently completed survey by Dell Computer Corporation, customers prefer to be on the Internet than to watch television at home.People predict the distinction between television and the Internet — the global network of computer networks — will soon start to blur.This will lead to customized newspapers and video called up at the touch of a button as a powerful rival to television. This is a slowly adapting marketplace, but broadcast television might diminish.The breakthrough will come when digital broadcasting puts television on the same technological footing as computers.At the point when the television signal that the average person gets is digital, there is tremendous leverage to browsing the Internet model and the digital bits that you see on your screen.To get to the 70, 80, 90 percent kind of market that television has, computer industry has to have a model that looks a lot more like television and a lot more like entertainment than any of us have seen so far. By that time the Internet might crowd out television in the battle for consumers.The consumer is slow to adapt always. You can push the cost down and simplify things, but consumer behavior is very, very difficult to change.On the hardware front, the trend is toward affordable computers rather than high-powered machines. People want to see very simple, low-cost devices. You don’t need the complexity if you just have a limited set of tasks.Questions:）1. What is true about the Internet2. What happens to the Internet and TV when the digital broadcasting systemis adopted3. What does the recent survey made by Dell Computer Corporation prove4. What happens when television is put on the same rank as computers bydigital broadcasting5. What will happen when television signal is digital6. What will computer industry do to get to a high percentage of market shares7. What is true in terms of changing consumer behavior8. In terms of hardware, what do consumers preferB. Listen to the passage again and discuss the following questions.KeyA. 1. C 2. D 3. A 4. D 5. B 6. B 7. A 8. AB. 1. It will have to become more like TV.2. People predict the distinction between television and the Internet willsoon start to blur.3. When computer industry has a model that looks a lot more like televisionand entertainment.4. Yes, it can.5. They want very simple, low-cost devices.Part 2 VideoSmartphone App to Bridge ASEAN Language BarriersScriptWatch the video film and answer the questions.The ASEAN One application will translate about a hundred useful phrases into the 10 languages of the Association of Southeast Asian Nations as well as English.The Thai company developing the software, iGnite Asia, says it is aimed mainly at frequent business travelers.CEO Jirath Pavaravadhana says if successful, they will expand the application’s capabilities.“The language would be the main theme, but, apart from language, you would have currencies, director ies, map and everything.”Head of marketing Nataphol Pavaravadhana says it will also be a useful tool for students studying a neighboring country’s language.“So we intend to penetrate the market by using the university connection, and another one is gover nment support.”The Thai company says it hopes ASEAN countries promote the application asa tool that can help ASEAN’s goal of forming an economic community by 2015.ASEAN One is expected to be released around June and will be paid for through advertising, making it free for consumers.Key1. It will translate about a hundred useful phrases into the 10 regionallanguages of the Association of Southeast Asian Nations and English.2. It is aimed mainly at frequent business travelers.3. It will provide almost all sources of information, such as currencies,directories and map.4. It will also be a useful tool for students learning the language of aneighboring country.5. It hopes ASEAN countries promote the application as a tool that can helpASEAN’s goal of forming an economic community by 2015.。