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武科大机械专业专升本英语基础语法讲义一、简单句和并列句（简单句和并列句是复合句的基础。
）1. 简单句的五种形式：（1）主语+谓语(不及物动词）；（2）主语+谓语（及物动词）+宾语；（3）主语+谓语+宾语+补语；（4）主语+谓语+间接宾语+直接宾语；（5）主语+系动词+表语。
两类系动词：①be动词；②一些实义动词用作系动词：feel, taste, smell等；2. 并列句：一个句子当中包含两个或更多互不相依存的主谓结构，中间用一些连接词连接起来的句子。
并列句不能只用逗号隔开，而要用连接词连接。
连接词：（1）并列关系句型：连接词有and, as well as, either…or…，neither…nor…,not only…but also… st year I met Kate and we became friends.2.Either my uncle can do it, or my aunt can do it.（2）转折概念并列句型：转折词有but：It has no mouth, but it can talk.（3）对比关系的并列句型：He liked sports, while I would rather collect stamps.举例：1.Cerling‘s team collected tap water samples from 600 cities and constructed a mop（最终结果） of the regional（地区的） differences.（简单句） 2.Most hydrogen （氢） and oxygen（氧） atoms（原子） in water are stable, but traces（痕迹） of both elements are also present（呈现） as heavier isotopes（同位素）. （并列句）二、句子成分句子六大成分：主谓宾、定状表。
《机械工程专业英语》词汇Chapter One Mechanics Components 第一章机械构件 Lesson One 第一课齿轮 Words and Expressions1.spur gear 直齿轮2.thermal expansion 热膨胀3.lubrication润滑4.backlash倾向间隙5.the pitch circles节圆6.space width间隙宽度7.instrument gear仪表齿轮8.the split gear拼合齿轮9.helical gear斜齿轮10.pitch-line velocities节线速度11.an axial thrust轴向推力12.blank 坯件13.double-helical gears 人字齿轮14.non-intersecting不相交的15.worm gears蜗轮蜗杆16.bevel gears伞齿轮17.crossed-axis交叉轴18.nut 螺母19.screw丝杠螺钉rge rations 大速比21.parallel-shaft gears平行轴齿轮22.single-thread worms单线蜗杆23.lead angles导角24.multiple-thread worms多线蜗杆25.hypoid gear偏轴伞齿轮26.rolling Cones滚锥27.involutes渐开线，Lesson Two Rolling Guides and Bearings 第二课滚动导轨和轴承Words and Expressions1.rolling guides (rolling guideways) 滚动导轨2.plain guides普通导轨3.a roller chain滚柱链4.cape保持架5.guide surfaces导轨面6.stiffness 刚性7.load-carrying capacity 载荷能力8.rolling-contact bearings滚动轴承9.ball bearing球轴承10.an inner race 内座圈11.an outer race外座圈12.separator 隔离环13.curvature曲率14.notch 凹槽15.thrust load 推力负载16.a radial ball bearing经向球轴承17.sections断面18.an axial-thrust bearing轴向推力轴承19.washer 垫圈20.roller bearing 滚子轴承21.tapered 锥形的22.spherical球面的23.retaining shoulder 定位肩24.needle bearing滚针轴承25.tapered roller bearings锥形滚子轴承26.spherical roller bearings 球面滚子轴承27.concave凹面的28.convex凸面的Lesson Three Clutches第三课离合器Word and Expressions1.coaxial (coaxial) 同轴的，共轴的2.a rotatable shaft (driven shaft) 从动轴3.a rotating shaft (driving shaft) 主动轴4.friction clutches磨擦离合器5.ring-shaped环形的6.spring弹簧7.a conical spool锥形短管轴8.coefficient of friction磨擦系数9.facing衬片10.dry clutches干式离合器11.wet clutches 湿式离合器12.a multiple-plate disc clutch多片式圆盘离合器13.spline花键14.pivot枢轴15.magnetic clutches电磁离合器16.an annular gap环状间隙17.powder iron铁粉18.graphite石墨19.direct-current control coil直流控制线圈20.slippage滑动Lesson Four Ball screw and nuts 第四课滚珠丝杠螺母副Words and Expressions1.precision ball screw assembly 精密滚珠丝杠副2.auto-drafting machines自动制图机3.valves阀门4.metallurgical machinery冶金机械5.satellite tracers卫星跟踪仪6.steering gears转向机构7.stick-slip 爬行循环8.rolling guideways滚动导轨9.recirculating-ball screw滚珠丝杠10. feed mechanisms 进给机构11. wear 磨损12. damping property 阻尼性13. tangential 切向的14. circumferential 圆周的15. thread pitch螺距16. a ball-return track回珠滚道17. a return tube回珠管18. shock-free无冲击19. stiffness刚性20. freedom from免除21. pre-load预载Chapter Two Constructure and Technology of Machine Tools第二章机床结构及工艺Lesson One Size, Bed and Tailstock of Engine lathe第一课普通车床的尺寸、床身及尾架Words and Expressionsthe (turning lathe, engine lathe, tuning machine) 车床2.the live center point 活顶尖3.swing 回转直径4.bed 床身5.ways导轨6.Carriage 床鞍7.Cross-feed slide 横进给刀架8.Headstock主轴箱9.tailstock. 尾架10. rack 齿条11. pinion gear小齿轮12. handwheel 手轮13. hardened steel 淬火钢14. flame-hardened ways 火焰淬火导轨15. the distance between centers项尖距16. taper shank锥形车削17. tailstock spindle 尾架锥柄18. taper shank 套筒19. three-jaw chuck三爪卡盘20. roller bearing滚子轴承21. lubrication润滑22. workpiece工件Lesson Two Headstock of Engine Lathe第二课普通车床的主轴箱Words and Expressions1.spindle 主轴2.taper sleeve锥套3.live center轴心活顶针4.the threaded spindle nose螺纹主轴头5.the cam lock spindle nose凸轮锁紧主轴头6.the long taper key drive spindle nose长锥键传动主轴头7.flange法兰盘8.Chuck卡盘9.Cam lock stud、凸轮锁紧短轴10. Collar 轴环11. faceplate套圈12. keyway花盘，键槽13. back gear背轮14. bull gear 大齿轮15. sliding pit滑动槽16. groove、槽17. step pulley塔轮18. drive pulley主动轮19. driven pulley被动轮20. gear box齿轮变速箱Lesson Three Carriage, Feeding and Threading Mechanism of Engine Lathe第三课普通车床的床鞍、进给和车螺纹机构 Words and Expressions1.Saddle鞍座2.Apron 滑板箱3.Cross slides 横向滑板，横刀架pound rest 复合刀架（转盘）5.tool post小刀架6.tool holder 刀夹7.Clutch 离合器8.Facing 车端面9.Cutoff 切断机动进给10. power feed 动力进给11. split nut (half-nut) 开合螺母12. dovetail way 燕尾导轨13. micrometer collar 千分尺套圈摇柄14. rocker 摇臂15. threading 车螺纹16. gear box 齿轮箱，传动箱17. ring collar 刻度环18. an index chart 指示图19. lead screw丝杠20. feed rod 光杠21. Cross-feed横进给22. Longitudinal feed 纵向进给23. acme threads 梯形螺纹24. right-hand thread右旋螺纹25. left-hand thread 左旋螺纹Lesson Four Word-holding attachments for the lathe and Rough turning第四课车床工件夹紧附件和粗车Words and Expressions1.attachment 附件2.four-jaw independent chuck 四爪单动卡盘3.Collar chuck 套爪卡片4.follower rest 跟刀架5.reducing sleeve 中心架the dog 异径套筒7.bent-tail dog 车床卡爪8.Rough turning 曲尾卡爪9.Rough turning粗车white lead白铅粉Center height中心高end副后角relief后角Clearance angle留隙角 back rake 纵向前角tangent切线caliper卡尺trial cut试切overload过载、Lesson Five Milling Shaper, Planer and Grinding Machines第五课铣床、刨床和磨床Words and Expressionsling machines 铣床ling cutter 铣刀刀杆3.arbor 心轴4.spacer 垫圈、垫片5.bushing套6.yoke 支座7.starting lever 起动手柄8.Knee升降台9.elevating screw 升降丝杆10. index head分度头11. foot stock 分度头支座12. Universal Milling Machine 万能铣床13. Shaper牛头刨床14. plane 龙门刨床15. ram 滑轨16. vise 台钳17. fixture 夹具18. notched wheel or ratchet 棘轮19. pawl 棘爪20. cross rail 横梁21. grinding machine 磨床22. grinding wheel 砂轮23. finish 光洁度24. Cutter grinder 工具磨床25.surface grinder 平面磨床26.centreless grinder 无心磨床27.internal grinder 内圆磨床28.external grinder 外圆磨床29.Wheel head磨头Lesson Six Machine Tool Tests, Accuracy checking and Maintenance 第六课机床试验，精度检验及保养Words and Expressions1.acceptance tests 验收试验2.certificate data 检验证数据3.geometrical accuracy几何精度4.surface roughness 表面粗糙度5.vibration-proof 防振6.straightness 平直度7.flatness 平面度8.upright立柱9.base plate 底板10. deviation 偏差11. parallelism 平行度12. squareness垂直度13. servicing 维修14. inspection检查15. repairs 检修16. maintenance 保养17. rapidly wearing components 易损件18. post-inspections repairs 后检查修理19. periodic repairs定期检修20. routine servicing 日常维修21. general overhaul 大修22. restoration修复Chapter Three Modern Manufacturing Engineering &Development第三章现代制造技术及其发展Lesson One The development of NC 第一课数字控制的发展 Words and Expressions1.vacuum tube 真空管2.electrical relay 继电器3.interface 接口4.integrated circuit(IC) 集成电路5.hardware 硬件6.Read Only Memory(ROM) 只读存储器7.Machining Center 加工中心8.Turning Center车削中心9.electrical discharge machining电火花加工10.drafting制图11.printed circuit(PC) 印刷电路12.robot机械手，机器人13.Subroutine子程序14.tape reading纸带读数15.alarm 报警16.diagnostic message诊断信息17.Constant surface speed control 恒线速控制18.polar coordinate 极座标19.interpolation插补20.microprocessor微处理机21.servo drive伺机服驱动22.pre-amplifier前置放大器23.point-to-point点位24.contouring轮廓控制25.bubble memory磁泡存储器26.macro宏指令27.canned cycle固定循环Lesson Two Open-loop and closed-loop servo drives第二课开环和闭环伺服驱动Words and Expressionsrmation command section 信息命令段2.punched tape code穿孔带码3.magnetic tape code 磁带码4. input data 输入数据5.open-loop开环6.closed-loop 闭环7.automatic washing machine自动洗衣机8.power supply level电源电平9.feedback 反馈10. resolution清晰度11. deterioration恶化，变坏12. discrepancy差误13. subtract logic减法逻辑14. command position counter 指令位置计数器15. drive signal amplifier 伺服信号放大器16. transducer 传感器17. synchro 同步机18. shaft digitizer轴数字读出器19. analog模拟量digital数字式self-correcting自动修正light interruption光中断photo cell光电管electric pulse电脉冲increment增量encoder编码器binary二进制Gray code格雷码Segmentation扇区Lesson Three Hydraulic motors and servo motors第三课液压马达和伺服电机Words and Expressions1.hydraulic motor 液压马达2.oil sump 油箱，油槽3.oil pressure pump 油压力泵4.hydraulic cylinder 液压缸5.valve 阀6.oil flow 油流7.hydrostatic drives 水力驱动，静压驱动8.variable-delivery pump9.piston 活塞10. reciprocating movement 往复运动11. supply line 供应线12. return line 回程线13. the filling cycle14. servomotors 伺服电机15. input command signals 输入命令符号16. step-by-step motors 步进电机17. Phase-shifted18. Amplifier 放大器19. Contact 触点，接头20. Electromagnet 电磁铁。
Lesson 1 Basic Concepts in Mechanics1、The branch of scientific analysis which deals with motions, time, and forces is called mechanics and is made up of two parts statics and dynamics对运动、时间和作用力作出科学分析的分支称为力学。
它由静力学和动力学两部分组成。
2、Our intuitive concept of force includes such ideas as place of application, direction,and magnitudeand these are called the characteristics of a force.直观概念包括作用点、方向和大小。
这些称为力的要素3、Inertia is the property of mass that causes it to resist any effort to change its motion.惯性是质量所具有的抵抗任何外力改变其本身运动状态的性质.4、A particle is a body whose dimensions are so small that they may be neglected.当一个物体的尺寸特别小，可以忽略不计时，该物体可以被称为质点。
5、Law 1 If all the forces acting on a particle are balanced, the particle will either remain at rest or will continue to move in a straight line at a uniform velocity.第一定律如果作用在一个质点上的所有外力平衡，那么，这个质点保持原来的静止或者匀速直线运动状态不变。
Lesson 1 Basic Concepts in Mechanics The branch of scientific analysis which deals with motions, time, and forces is called mechanics and is made up of two parts, statics and dynamics. Statics deals with the analysis of stationary systems, i.e., those in which time is not a factor, and dynamics deals with systems which change with time.对运动、时间和作用力进行科学分析的分支称为力学。
它由静力学和动力学两部分组成。
静力学对静止系统进行分析，即在其中不考虑时间这个因素，动力学对随时间而变化的系统进行分析。
Forces are transmitted into machine members through mating surfaces, e. g., from a gear to a shaft or from one gear through meshing teeth to another gear, from a V belt to a pulley, or from a cam to a follower. It is necessary to know the magnitudes of these forces for a variety of reasons. The distribution of the forces at the boundaries or mating surfaces must be reasonable, and their intensities must be within the working limits of the materials composing the surfaces. For example, if the force operating on a journal bearing becomes too high, it will squeeze out the oil film and cause metal－to－metal contact, overheating, and rapid failure of the bearing. If the forces between gear teeth are too large, the oil film may be squeezed out from between them. This could result in flaking and spalling of the metal, noise, rough motion, and eventual failure. In the study of mechanics we are principally interested in determining the magnitude, direction, and location of the forces.力通过接触表面传到机器中的各构件上。
大学机械专业英语教材[注意：此文档按照教材格式撰写，供参考。
]Unit 1: Introduction to Mechanical EngineeringLesson 1: The Basics of Mechanical Engineering1.1 Definition and Scope of Mechanical EngineeringMechanical engineering is a branch of engineering that applies principles of physics and materials science to design, analyze, manufacture, and maintain mechanical systems. It encompasses various areas such as mechanics, thermodynamics, fluid mechanics, and materials engineering.1.2 Historical Overview of Mechanical EngineeringMechanical engineering has been an essential field since ancient times, with notable contributions from cultures such as the Greeks, Romans, and Chinese. The Industrial Revolution marked a significant milestone for mechanical engineering, leading to the development of steam engines, machine tools, and the mechanization of various industries.Lesson 2: Engineering Materials2.1 Introduction to Engineering MaterialsEngineering materials play a crucial role in mechanical engineering applications. They can be classified into metals, polymers, ceramics, and composites based on their chemical composition and properties. Understanding the characteristics and behavior of materials is essential for designing reliable and efficient mechanical systems.2.2 Mechanical Properties of MaterialsMechanical properties describe how materials respond to external forces or loads. Key properties include strength, stiffness, hardness, toughness, and ductility. These properties dictate the performance and suitability of a material for specific applications in mechanical engineering.Lesson 3: Mechanics3.1 Newton's Laws of MotionNewton's laws of motion form the foundation of classical mechanics. They describe the relationship between the motion of an object and the forces acting upon it. Understanding these laws is crucial for analyzing the behavior of mechanical systems and designing mechanisms that operate efficiently and safely.3.2 Statics and DynamicsStatics involves the study of forces acting on stationary objects or systems in equilibrium, while dynamics focuses on the motion of objects under the influence of forces. Statics and dynamics principles are fundamental in mechanical engineering, enabling engineers to analyze and predict the behavior of mechanical systems in various scenarios.Unit 2: ThermodynamicsLesson 1: Basics of Thermodynamics1.1 Introduction to ThermodynamicsThermodynamics is the branch of physics that deals with the relationships between heat, work, and energy. It plays a vital role inmechanical engineering, as it enables engineers to analyze and optimize energy conversion and utilization processes in mechanical systems.1.2 Laws of ThermodynamicsThe laws of thermodynamics establish fundamental principles governing energy transfer and transformation. The first law states that energy cannot be created or destroyed, only transferred or converted. The second law introduces the concept of entropy and establishes limitations on the efficiency of energy conversion processes. The third law relates to the behavior of matter as it approaches absolute zero temperature.Lesson 2: Thermodynamic Cycles2.1 Carnot CycleThe Carnot cycle is an idealized thermodynamic cycle that operates between two temperature reservoirs, a high-temperature source, and a low-temperature sink. It serves as a benchmark to determine the maximum efficiency that any heat engine operating between the same temperature limits can achieve.2.2 Rankine CycleThe Rankine cycle is a thermodynamic cycle commonly used in power plants to convert heat into mechanical work. It involves the expansion of a working fluid in a turbine, followed by condensation in a condenser and compression in a pump. The Rankine cycle is widely used in steam power plants.Unit 3: Fluid MechanicsLesson 1: Fundamentals of Fluid Mechanics1.1 Introduction to Fluid MechanicsFluid mechanics is the study of fluids and how they behave under various conditions. It encompasses both liquids and gases and is essential in understanding the behavior of fluids in mechanical systems such as pumps, turbines, and pipelines.1.2 Properties of FluidsFluids exhibit unique properties such as viscosity, density, pressure, and temperature. These properties govern fluid flow behavior and are crucial in the design and analysis of fluid systems.Lesson 2: Fluid Statics and Dynamics2.1 Fluid StaticsFluid statics deals with the study of fluid behavior at rest or in equilibrium. It involves analyzing pressure distribution, buoyancy forces, and stability conditions of floating or submerged objects.2.2 Fluid DynamicsFluid dynamics focuses on the motion of fluids and involves the study of fluid flow patterns, velocity, pressure distribution, and forces exerted by fluids on solid surfaces. Understanding fluid dynamics is vital in designing efficient hydraulic systems, aerodynamics, and fluid power systems.Note: The above content is a brief example of the format and topics that could be covered in a university-level mechanical engineering Englishtextbook. The actual content and structure of such a textbook may vary depending on the curriculum and educational standards of the institution.。
