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大学化学专业英语作业答案

大学化学专业英语作业答案
大学化学专业英语作业答案

英语作业答案

第四页:1.You found that, in two experients,hardness and greenness in apples wenr together with sourness.

在两个实验中,你会发现,苹果的酸度往往与它的硬度和颜色有关。

2.These vacuum tubes will see use in the output stage.

这些真空管将在输出阶段起作用。

3.bio- biomaterial生物材料biotechnology 生物技术biodegrebable生

物可降解的biomedicine 生物医学biocatalyst生物催化剂

Biosynthesis生物合成

nano- nanochemistry纳米化学nanostructure 纳米结构

nanotechnology纳米技术nanotube 纳米管nanosecond纳秒

anti- antibody抗体anticancer 抗癌的antioxidant 抗氧化剂

antifoam 消泡剂antitumor抗癌抗菌素

4.good knife 好刀good conductor 良导体good English 流利的英

语good momey 高薪good soil 肥沃的土壤good oil 提纯的油

Milk is good food for children.牛奶对儿童来说是很好的食物。

It is no good heating the material to such temperature.把这种材料加热到

这个温度是没有必要的。

The works gave the machine a good checking,工人们给这台机器做了一

个彻底的检查。

第十七页:1.纯苦杏仁苷的制备。Preparation of pure amygdalin.

HPLC-RI法测定大豆磷脂酰胆碱含量。Determination of

phosphatidycholine in soybean by HPLC-RI.

.聚丙烯酸钠高吸水性树脂的制备和性能研究。

Preparation and properties of high water-absorbent poly(sodium acrylate)

resin.

2.Department of Computer Science and Technology ,institutes of information

science and technology,Tsinghua University,Beijing,10084,China.

浙江大学材料与化学工程学院,制药工程研究所,中国浙江杭州310027 第二十七页:矿物mineral 分子molecule 原子atom 质子proton

元素element 周期表periodic table 有机化学organic chemistry

无机化学inorganic chemistry 分析化学analytical chemistry

物理化学physical chemistry 生物化学biochemistry

工业化学industrial chemistry 化学工程chemical engineering

定性分析qualitative analysis 定量分析quantitative analysis

沉淀precipitation 萃取extraction 蒸馏distillation 沸点boiling

point 熔点melting point 折光指数refractive index光学活性optical

activity 重量法gravimetric analysis 滴定法titration method 热力学第一定律the firsr thermodynamics 熵entropy

化学动力学chemical kinetics 动能kinetic energy 势能potential energy

内能internal energy

第五十页:1.quantum 量子strain 变形mould 模型phenol 苯酚

Sulphate 硫酸盐carbide 碳化物foul 难闻的scrub 洗涤

Semi-technical 半技术的fernenter 发酵槽CFC氟利昂

Refrigerant制冷剂

2.试剂reagent 单体monomer 丙酮acetone 脉动pulsation

乙炔ethyne 硫sulfer 盐酸hydrocholoric acid 停车时间down time 杂质impurity 反应器reactor 优化optimize 纯度purity

新 全 汽车专业英语期末试卷

汽车专业英语期末试卷 (100分) 一选择题(10分) 1 It does not only have economic effects but also provide C job opportunities A numerous B difficult to count C countless D a lot of 2 the electrical system contains battery light generator, engine ignition .lighting circuit, and various B that control their use A the socket B switches C the charger D battery 3 suspension is the term given to the system of springs . Shock absorbers and B that connects a vehicle to its wheels . A contact B linkages C meet D thing of 4 A solid axle designs utilize springs to soften their inherent harsh ride characteristics , they still bump along like a brick out house. A even though B even if C although D since

5 the frame A two straight pressed steel members, five cross members , the front axle , the rear axle and four wheels A consists of B be made up of C include D reason 二把下面的表达式转化为中文或英文(20分) 1 邮车 mail van 6 sedan 轿车 2 赛车 racing car 7 bumper 保险杠 3 救护车 ambulance 8 lamp 灯 4 越野车 off -road vehicles 9 tire 轮胎 5 洒水车 sprinkler 10 hood 发动机罩 三把下面的简写正确搭配(10分) FWD electrical suspension control system TD Four -wheel drive AT anti -lock brake system ABS turbo diesel ESCS automatic transmission 四写出下面单词的全称及意思 (10分) 1 SUV 运动型多功能用车 sports utility vehicle

数学专业英语课后答案

2.1 数学、方程与比例 (1)数学来源于人类的社会实践,包括工农业的劳动,商业、军事和科学技术研究等活动。 Mathematics comes from man’s social practice, for example, industrial and agricultural production, commercial activities, military operations and scientific and technological researches. (2)如果没有运用数学,任何一个科学技术分支都不可能正常地发展。 No modern scientific and technological branches could be regularly developed without the application of mathematics. (3)符号在数学中起着非常重要的作用,它常用于表示概念和命题。Notations are a special and powerful tool of mathematics and are used to express conceptions and propositions very often. (4)17 世纪之前,人们局限于初等数学,即几何、三角和代数,那时只考虑常数。 Before 17th century, man confined himself to the elementary mathematics, i. e. , geometry, trigonometry and algebra, in which only the constants were considered. (5)方程与算数的等式不同在于它含有可以参加运算的未知量。 Equation is different from arithmetic identity in that it contains unknown quantity which can join operations. (6)方程又称为条件等式,因为其中的未知量通常只允许取某些特定的值。Equipment is called an equation of condition in that it is true only for certain values of unknown quantities in it. (7)方程很有用,可以用它来解决许多实际应用问题。 Equations are of very great use. We can use equations in many mathematical problems. (8)解方程时要进行一系列移项和同解变形,最后求出它的根,即未知量的值。To solve the equation means to move and change the terms about without making the equation untrue, until the root of the equation is obtained, which is the value of unknown term. 2.2 几何与三角 (1)许多专家都认为数学是学习其他科学技术的必备基础和先决条件。 Many experts recognize that mathematics is the necessary foundation and prerequisite of studying other science technology. (2)西方国家的专家认为几何起源于巴比伦和埃及人的土地测量技术,其实中国古代的数学家对几何做了许多出色的研究。 The western experts think that geometry had its origin in the measurements by the Babylonians and Egyptians of their lands. Infect, the ancient Chinese mathematicians made much remarkable study for geometry. (3)几何的学习使学生在思考问题时更周密和审慎,他们将不会盲目接受任何结论。 In studying geometry, the student is taught to think clearly and critically and he is led away from the practice of blind acceptance of any conclusions. (4)数学培养学生的分析问题的能力,使他们能应用毅力、创造性和逻辑推理来解决问题。

大学化学课后习题参考答案

第1章 化学热力学 参考答案: (一)选择题 1.A 2.A 3.C 4.B 5.D 6.C 7.C 8.C 9. A 10. C 11. A 12.C (二)填空题 1.40; 2.等温、等容、不做非体积功,等温、等压,不做非体积功; 3.>,<,=,> 4.增大、不变 5.不变 6.3.990 kJ·mol - 1 (三)判断题 1. × 2. × 3. × 4. × 5. √ 6. × 7. × 8. × 9. × 10. × (四)计算题 1.解:(g) O N (l)H 2N 4242+O(l)4H (g)3N 22+ (l)H N 42摩尔燃烧热为 2.解: ) mol ·(kJ 28.254166.963.502)84.285(401f B r --=-?--?+=?=?∑H H ν)mol ·(kJ 14.6272 11r -Θ-=?=H Q p K 1077.3109.9824.3733 3 m r r ?=?--= ??= -S T 转) mol ·(kJ 78.34357 .86)15.137(36.3941 f B r --=---=?=?∑ G ν)K ·mol ·(J 9.9865.21056.1975.1912 1 6.21311B r ---=--?+==?∑ νNO(g )CO(g )+(g) N 2 1(g)CO 22+) mol ·(kJ 24.37325 .90)52.110(5.3931f B r --=----=?=?∑ H ν

此反应的 是较大的负值,且)(,)(-?-?S H 型反应,从热力学上看,在 T 转的温度以内反应都可自发进行。 3.解:外压kPa 50e =p ,11p nRT V = ,2 2p nRT V =,2e p p = 系统所做功: 定温变化,0=?U 0=+=?W Q U ,所以Q =1 247.1(J ) 定温过程pV =常数 ?(pV )=0 所以 0)(=?+?=?pV U H 4.解:查表知 CaO(s) + SO 3(g) = CaSO 4(s) 求得 同理求得 因为 所以根据经验推断可知,反应可以自发进行。 但由于该反应 ,故存在一个能使反应自发进行的最高温度,该 温度为 一般的炉温是1 200℃左右,所以热学上,用CaO 来吸收SO 3以减少天气污染的可能性是存在的。这种方法在实际中已有应用。 5.解:(1) ) mol ·kJ (4.116108.21515.29874.18013 r r r --=??-=???T )K 298(r ?) (J 1.247150 100100 50300314.8150RT 2112e 21 e e e e -=?-? ???=? ??? ??-=? ??? ??--=?-=?-=p p p p n p p nRT p nRT p V p V p W 7 .10676 .25675 .39) k ·mol ·(J 79.321106.37103.604)mol ·(kJ 11.434172.39509.634)mol ·(kJ 111f 1f -------?---?S G H 11r 1r K ·m ol · J 81.189,m ol ·kJ 7.346----=?-?S 11r mol ·kJ 42mol ·kJ 7.346---<<-?℃8571 K 0.130281 .189103.4043 ==-?-==H T )mol · kJ (74.180) 37.90(21f B r -=-?-=?=?∑ ν0,0r r ?? < ) K ·mol ·J (8.2150 .7220.2044.77211B r --=?-+?==?∑ ν1 3f 3f 4f r mol ·kJ 3.404)09.634()72.395(11.4341)CaO )SO )CaSO --=-----=?-?-?=?H H H H

汽车专业英语期末考试题型说明

Terminal Reviews to English for the Automotive Profession I. Answer the following questions.(20%) Choose 5 of 6, 4 points for each, total in 20 points. 1. What does the drive train consist of? The drive train consists of clutch, transmission, driveshafts, differentials, and the final drive (drive wheels, continuous track like with tanks or Caterpillar tractors, propeller, etc.). In a wider sense, the drive train includes all of its components used to transform stored (chemical, solar, nuclear, kinetic, potential, etc) energy into kinetic energy for propulsion purposes. 2. How to install the drive gear? First, clean the drive gear attaching bolts. Second, remove the adhesive adhered to the threaded holes of the drive gear by turning the special tool, and then clean the treaded holes by applying compressed air. Third, apply the specified adhesive to the threaded holes of the drive gear. Forth, install the drive gear onto the differential case with the mating marks properly aligned. Tighten the bolts to the specified torque in a diagonal sequence. 3. What is the process of the ABS working? The Anti-lock Brake System (ABS) uses a sensor that know when one wheel (or a pair of wheels) is skidding. The sensor sends a signal to a computer, which signals a modulator valve. The modulator connects into the hydraulic system and can momentarily release the brake pressure and prevent the wheels from locking. (The pressure release is so fast that a driver is seldom aware of it.) Pressure is then reapplied until the sensor again sensor that the wheel is about to lock up. Thus, this system keeps the wheels as colse to lock up as possible, without actually allowing the wheels to lock up and skid. This is called incipient lock up. Maximum braking occurs at that point. 4. What is the purpose of gear reduction from steering gear? The gear reduction is known as steering gear ratio. This is needed to reduce the amount of effort required to turn the steering wheel, particularly when parking. During straight-ahead driving, this also reduces the possiblility of oversteering. The ratios vary considerably, depending largely on vehicle size and weight. Larger, heavier vehicles require a graeter reduction in manual steering gears. 5. How does the starter clutch work? The purpose of the starter clutch is to engage and disengage the pinion gear from the flywheel. When the starer is cranking, the pinion gear slides on the armature shaft and engages the flywheel. 6. How to check DTC in the normal mode? First, turn ignition switch off. Second, connect terminals TE1 and E1 of data link connector 1 or 2. Third, Turn ignition switch on. Forth, read the diagnostic trouble code on malfuntion indicator lamp on the combination meter. Fifth, afer completing the check, turn ignition switch off and disconnect terminals TE1 and E1. II. Translate the following into Chinese. (20%) Choose 20 of 30, 1 points for each, total in 20 points. 1. drive train 动力传动系 2. suspension system and axle 悬挂系统和驱动桥 3. brake system 制动系统 4. steering system 转向系统

专业英语部分习题答案参考.doc

b-毗喘pyridine 巴比妥酸:barbituric acid 比电导conductance 不规则的:irregular 崩解剂disintegrant C--萃取extraction 成团:ogglomerotion 测量仪measurement 肠液:intestinol fluid d-胆固醇cholestero 对映体:enontiomer 电极electrode 代谢:metobolism f-反相渗透reverse osmosis 分布:disposition g-构象:conformotion 固化:solidize 卜-甲苯toluene 静脉注:introvenous injection 挤压:compress 聚集:aggregate 胶囊capsule I一粒子:particle 立体选择性:stereoselectivity 利用率:availability 灭菌产品sterile products n—粘合剂odhesive P—偏振光:polarized light 片剂tablet 酉己剂elixir 排泄:excretion q一起女台原料starting materials(raw materials) q 醛aldehyde 「一溶解度:solubility 乳剂emulsion 润滑剂lubricant s-释放:release 渗液solution 生物膜:biologic membrane 生物碱okoloid, t…糖浆syrup 甜味剂sweetener w-丸剂pill 微生物microorganism 胃液:gastric fluid 稳定态:steady-state x-?旋光异构现象:optical isomerism 悬浮液suspension 香味剂flavor 稀释剂diluent 形状:shape 吸收absorption 消除:elimination y-胰岛素insulin 压片:tablet compression z-中间体intermediote 重结晶recrystallization 左旋:levorotation 蒸徭distillation 组织tissue a-asymmetric carb on 不对称碳absorption 吸收action 动作odhesive 粘合剂c-contamination 污染chirality:手性compress 压缩composite 合成的compressibility:可压缩性compaction:压紧contaminotion specialize 特殊污染conductivity 电导率control控制clinical:临床的 d- design:设计dry:干燥delivery:传送 e-巳xtgnd:延长epoxide:环氧化物 f- formulation:$ij 剂fluidity:流动性function:功能 g- geometric isomerism:几何异构 h- hormone 激素hydrolysis diastereoisomer:水解非对映异构体 heterogeneous catalyst 多相催化剂, i- irrigating 冲洗 m- metabolite代谢物medication药物治疗medicine内服药mill:研磨measure 尺寸mix:混合microorganisms 微生物 o- ophthalmic 眼药 p- polysaccharide 多糖peptide 肽plosmo 血浆penicillin 青霉素, precursor:前体partition coefficient:狭义分配系数pharmaceutical 制药的 parenteral 注射药物pycogens 热源procedure:程序 q- quality 性质quantity 数量 s- steroid 笛类steric effect:空间效应stereoselectivity:^体选择性 screening:过筛sustain :维持

工科大学化学习题与解答

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数学专业英语期中测试

数学专业英语期中测试要求 将下列论文的摘要翻译为英语(按照学号顺序每个人分一个题目)。标题字体为黑体,字号三号,“摘要”二字以及“关键字”三字黑体,字号小四,其它字体为宋体,字号小四。行间距都为1.5倍行距。每人把自己要翻译的中文拷贝下来,然后在后面把它翻译为英文(英文字号与中文一样,字体为Times new roman,黑体的地方改为加粗),写上姓名,学号(格式如下面的例子),打印出来交给我。大家认真做一下,你们写毕业论文要用到,学一学怎样写规范的文章,包括文章的排版(上学期反复强调交给我的matlab程序的打印的格式,结果有人交给我的程序竟然有上百页,字体很大,行距很大,还单面打印!(按照要求做的话只要几页就够了)有些人老是听不进老师讲的话!这样做既劳民伤财又不利于存档)。大家做好以后交到学习委员处,学习委员收齐以后交来给我,期末之前给我就行。 例子 中文标题 (姓名:学号:) 摘要 这是摘要正文…… …… 关键字:关键字1;关键字2;关键字3 English title (name: ,student id: ) Abstract This is the content of the abstract…… …… Keywords: keywords1; keywords2; keywords3;

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