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学科英语中英文翻译

1. No such limitation is placed on an alternating-current machine; here the only requirement is relative motion, and since a stationary armature and a rotating field system have numerous advantages, this arrangement is standard practical for all synchronous machines rated above a few kilovolt-amperes.

交流电机不受这种控制，唯一的要求是相对运动，由于固定电枢和旋转磁场具有许多优点，这种安排对于额定容量超过几千伏安的同步电机来说是标准的实用。

2. For large motors, therefore, a phase-wound rotor is used, with the winding connected at one end to each other and at the other end to slip-rings, thus enabling the resistance of the rotor to be varied at will, providing a greater starting torque and some speed control.

因此，对于大型的电动机来说，一般采用相绕组转子，绕组一端互相连接，另一端接于滑环上，这样可随意改变转子的电阻，提供一个较大的启动转矩，并且可以适当地控制速度。

3. The resistance of any length of a conducting wire is easily measured by finding the potential difference in volts between its ends when a known current is flowing.

已知导线中的电流，只要求出导线两端电位差的伏特数，这样不难测出任意长度导线的电阻。

4. A diode placed in a circuit acts like a valve, allowing current to flow in only one direction.

装在线路中的二极管就像一个允许电流向一个方向流动的阀门。

5．A few years later he was able to take out his first two patents for high-frequency AC generators and transformers.

几年后，他获得了发明高频交流发电机和变压器的专利，这是他获得的最初两项专利。

6. These are the field winding, which produces the flux density, and the armature winding, in which the “working” emf is induced.

这些是励磁绕组和电枢绕组，励磁绕组建立磁场，电枢绕组产生感应电动势。7.Pure science has been subdivided into the physical science, which deals with the facts and relations of the physical world, and the biological sciences, which investigate the history and working of life on this planet.

理论科学可以细分为物理科学和生物科学，物理科学处理客观世界的事实和关系，生物科学研究星球上生命的历史和生活方式

8. The reason that a neutral body is attracted by a charged body is that, although the neutral body is neutral within itself, it is not neutral with respect to the charged body, and the two bodies act as if oppositely charged when brought near each other.

中性体能够被带电体吸引的原因是，尽管中性体本身是中性的，但当它接触带电体时就不是中性的了，它们就会像电荷相反的导体互相靠近时一样互相吸引。

英语短文中英文翻译

my friend and I are taking a , we are seeing a boy sit on the chair,he is crying,we go and ask him.“what’s the matter with you” he tell us“I can’t find my dog can you help me”.“yes,I can”.And we help him find his dong .oh it stay under the big tree! 今天我和我的朋友一起去散步。突然我们看见一个男孩坐在椅子上，他哭的很伤心。我们走过去问他：“你怎么了”。他告诉我们：“我的狗不见了，你们能帮我找到它吗”。“是的，我们能帮你找到你的狗”然后我们帮助他找到了他的狗，原来是它呆在一棵大树下。 day an old man siselling a big young man comes to the elephant and begins to look at it old man goes up to him and says inhis ear,“Don't sa y anything about the elephant before I sell it,then i'll give you some money.”“All right,”says the young the old man slles the elephant,he gives the young man some money and says,“Now,can you tell me how you find the bad ears of theelephant?”“I don't find the bad ears,”says the young man.“Then why do you look at the elephant slowly?”asks the old young man answers,“Because I never see an elephant before,and I want to know what it looks like.” 一天，一个老的男人正在卖一头大象。一个年轻的男人走向大象然后开始慢慢看着它（大象），这个老的男人走向他对着他的耳朵说，“不要在我卖出它（大象）之前说关于它（大象）的事，然后我会给你一些钱。”“好的”，这个年轻的男人说。在这个老的男人卖出大象后，他给了年轻的男人一些钱并且说，“现在，你可以告诉我你是怎样知道大象的坏的耳朵了吧？”“我不知道坏的耳朵”，这个年轻的男人说。“然后为什么你慢慢的看着大象？”这个老的男人问。这个年轻的男人回答，“因为我在这之前从来没有见过大象，还有我想知道它（大象）是什么样子的。” 3.An old woman had a cat. The cat was very old; she could not run quickly, and she could not bite, because she was so old. One day the old cat saw a mouse; she jumped and caught the mouse. But she could not bite it; so the mouse got out of her mouth and ran away, because the cat could not bite it.? Then the old woman became very angry because the cat had not killed the mouse. She began to hit the cat. The cat said, "Do not hit your old servant. I have worked for you for many years, and I would work for you still, but I am too old. Do not be unkind to the old, but remember what good work the old did when they were young."? 一位老妇有只猫，这只猫很老，它跑不快了，也咬不了东西，因为它年纪太大了。一天，老猫发现一只老鼠，它跳过去抓这只老鼠，然而，它咬不住这只老鼠。因此，老鼠从它的嘴边溜掉了，因为老猫咬不了它。? 于是，老妇很生气，因为老猫没有把老鼠咬死。她开始打这只猫，猫说：“不要打你的老仆人，我已经为你服务了很多年，而且还愿意为你效劳，但是，我实在太老了，对年纪大的不

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力学的基本概念对运动，时间和作用力作出科学分析的分支被称为力学，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，即在静力学系统中不考虑时间这个因素，而动力学是对随时间变化的系统进行分析。通过配合表面作用力被传送到机器的各个部件，例如从齿轮传到轴或者是从一个齿轮通过啮合传递到另一个齿轮，从三角皮带传到皮带轮，或者从凸轮传到从动件。由于很多原因，我们必须知道这些力的大小。在边界或啮合表面作用力的分布一定要合理，他们的大小必须在构成配合表面材料的工作极限以内。例如，如果施加在滑动轴承的作用力太大，那么它就会将油膜挤压出来，并且造成金属和金属的接触，使温度过高，使滑动轴承失效。如果作用在齿轮轮齿上的力过大，就会将油膜从齿间挤压出来。这将会导致金属表层的破裂和剥落，噪音增大，运动不精确，直至报废。在力学研究中，我们主要关心力的大小，方向和作用点。当一些物体连接在一起形成一个组合或者系统时，在两个接触的物体之间作用和反作用的力被称之为约束力。这些力约束各个物体使其处于特有的状态。作用在这个物体系统外部的力叫做外力。电力，磁力和重力是不需要直接接触就可以施加的力的实例。不是全部但是大多数，与我们有关的力都是通过直接的实际接触或者是机械接触才能产生的。力是一个矢量。力的要素就是它的大小，它的方向和作用点，一个力的方向包括力的作用线的概念和它的指向。因此，沿着力的作用线，力的方向有正副之分。沿着两条不重合的平行线作用在一个物体上的两个大小相等、方向相反的作用力不能合并成一个合力。任何作用在一个刚体上的两个力构成一个力偶。力偶臂就是这两个力的作用线之间的垂直距离。力偶矩也是一个矢量，用M表示，垂直于力偶面；M的方向主要依据右手螺旋定则确定。力矩的大小是力偶臂与其中一个力的大小的乘积。如果一个刚体满足下列条件，那么它处于平衡状态：（1）作用在它上面的所有外力的矢量和等于零。（2）作用在它上面的所有外力对于任何一个轴的力矩之和等于零。在数学上这两个条件被表示为 ∑=0 M F∑=0 所使用的术语“刚体”可以是整台机器，一个机器中几个相互连接的零件，一个单独的零件或者是零件的一部分。隔离体简图是一个从机器中隔离出来的物体的草图或视图，在图中标出所有作用在物体上的力和力矩。通常图中应该包括已知的力和力矩的大小、方向还有其他相关信息。这样得到的图成为“隔离体简图”，其原因是图中的零件或物体的一部分已经从其余的机械零部件中隔离出来了，其余的机器零部件对它的作用已经用力和力矩代替。对于一个完整的机器零部件隔离体简图，图上所表示出的，作用在其上面的力和力矩是通过与其相邻或相接触零件施加的，是外力。对于一个零件的一部分的隔离体简图作用在切面上的力和力矩都是通过被切掉部分施加的，是内力。绘制和提交简洁、清晰的隔离体简图是工程交流的核心。这是真实的，因为

测绘专业英语原文和部分翻译(1-39)

Table of Contents Uuit 1 What is Geomatics? （什么是测绘学） (2) Unit 2 Geodetic Surveying and Plane Surveying（大地测量与平面测量） (6) Unit 3 Distance Measurement（距离测量） (10) Unit 4 Angle and Direction Measurement（角度和方向测量） (14) Unit 5 Traversing （导线测量） (17) Unit 6 Methods of Elevation Determination（高程测量方法） (21) Unit 7 Robotic Total Station （智能型全站仪） (25) Unit 8 Errors in Measurement（测量工作中的误差） (29) Unit 9 Basic Statistical Analysis of Random Errors (32) Unit 10 Accuracy and Precision （准确度和精度） (35) Unit 11 Least-Squares Adjustment (38) Unit 12 Geodesy Concepts (40) Unit 13 Geoid and Reference Ellipsoid (42) Unit 14 Datums, Coordinates and Conversions (44) Unit 15 Map Projection (46) Unit 16 Gravity Measurment (48) Unit 17 Optimal Design of Geomatics Network (50) Unit 18 Construction Layout （施工放样） (53) Unit 19 Deformation Monitoring of Engineering Struvture (56) Unit 20 Understan ding the GPS（认识GPS） (59) Uuit 21 Understanding the GPS (II) 认识GPS(II) (62) Unit 22 Competition in Space Orbit（太空轨道上的竞争） (64) Unit 23 GIS Basics（GIS 的基础） (69) Unit 24 Data Types and Models in GIS GIS中的数据类型和模型 (75) Unit 25 Digital Terrain Modeling（数字地面模型） (79) Unit 26 Applications of GIS (83) Unit 27 Developments of photogrammetry (87) Unit 28 Fundamentals of Remote Sensing （遥感的基础） (90) Unit 29 Digital Image Processing and Its Applications in RS (94) Unit 30 Airborne Laser Mapping Technology（机载激光测图技术） (99) Unit 31 Interferometric SAR(InSAR) (102) Unit 32 Brief Introduction toApplied Geophysics (104) Unit 33 Origon of Induced Polarization (105) Unit 34 International Geoscience Organization (108) Unit 35 Prestigious Journals in Geomatics (110) Unit 36 Relevant Surveying Instrument Companies (115) Unit 37 Expression of Simple Equations and Scientific Formulsa (116) Unit 38 Professional English Paper Writing (119) Unit 39 Translation Techniques for EST (127)

学历学位中英文翻译对照

美国学校提供的学位有很多种，依所学领域的不同，而有不同的学位。以下列出的是美国高等教育中较常见的学位: Ph.D.（Doctor of Philosophy）: 博士学位。而有些领域的博士课程会有不同的学位名称，如D.A.(Doctor of Arts)、Ed.D.(Doctor of Education) M.B.A.（Master of Business Administration）: 商学管理硕士。 M.A.（Master of Arts）硕士；B.A.（Bachelor of Arts）学士: 两者皆属于人文、艺术或社会科学的领域，如文学、教育、艺术、音乐。 M.S.（Master of Science）硕士；B.S.（Bachelor of Science）学士: 两者皆属于理工、科学的领域，如数学、物理、信息等。 Associate Degree（副学士学位）: 读完两年制小区大学或职业技术学校所得到的学位。 Dual Degree（双学位）: 是由两个不同学院分别授与，因此得到的是两个学位。 Joint Degree：为两个不同学院联合给予一个学位，如法律经济硕士。 major 主修 minor 辅修大家要搜索自己的专业, 请按 ctrl + F 打开搜索窗口, 然后输入关键字查询学士 Bachelor of Arts B.A. 文学士 Bachelor of Arts in Education B.A.Ed., B.A.E. 教育学文学士 Bachelor of Arts in Computer Science B.A.CS 计算机文学士 Bachelor of Arts in Music B.A.Mus,B.Mus 音乐艺术学士 Bachelor of Arts in Social Work B.A.S.W 社会工作学文学士 Bachelor of Engineering B.Eng., B.E 工学士 Bachelor of Engineering in Social Science B.Eng.Soc 社会工程学士 Bachelor of Engineering in Management B.Eng.Mgt 管理工程学士 Bachelor of Environmental Science/Studies B.E.Sc., B.E.S 环境科学学士 Bachelor of Science B.S 理学士 Bachelor of Science in Business B.S.B., B.S.Bus 商学理学士 Bachelor of Science in Business Administration B.S.B.A 工商管理学理学士 Bachelor of Science in Education B.S.Ed., B.S.E 教育学理学士 Bachelor of Science in Engineering B.S.Eng., B.S.E 工程学理学士 Bachelor of Science in Forestry B.S.cF 森林理学士 Bachelor of Science in Medicine B.S.Med 医学理学士 Bachelor of Science in Medical Technology B.S.M.T., B.S.Med.Tech 医技学理学士 Bachelor of Science in Nursing B.S.N., B.S.Nurs 护理学理学士 Bachelor of Science in Nutrition B.SN 营养学理学士 Bachelor of Science in Social Work B.S.S.W 社会工作学理学士 Bachelor of Science in Technology B.S.T 科技学理学士 Bachelor of Computer Science B.CS 计算机理学士 Bachelor of Computer Special Science B.CSS 计算机特殊理学士 Bachelor of Architecture B. Arch. 建筑学士 Bachelor of Administration B.Admin. 管理学士

英语翻译英文版

I WAS born in the year 1632, in the city of York, of a good family, though not of that country, my father being a foreigner of Bremen, who settled first at Hull. He got a good estate by merchandise, and leaving off his trade, lived afterwards at York, from whence he had married my mother, whose relations were named Robinson, a very good family in that country, and from whom I was called Robinson Kreutznaer; but, by the usual corruption of words in England, we are now called - nay we call ourselves and write our name - Crusoe; and so my companions always called me. I had two elder brothers, one of whom was lieutenant-colonel to an English regiment of foot in Flanders, formerly commanded by the famous Colonel Lockhart, and was killed at the battle near Dunkirk against the Spaniards. What became of my second brother I never knew, any more than my father or mother knew what became of me. Being the third son of the family and not bred to any trade, my head began to be filled very early with rambling thoughts. My father, who was very ancient, had given me a competent share of learning, as far as house-education and a country free school generally go, and

力学专业英语部分翻译孟庆元

1、应力和应变应力和应变的概念可以通过考虑一个棱柱形杆的拉伸这样一个简单的方式来说明。一个棱柱形的杆是一个遍及它的长度方向和直轴都是恒定的横截面。在这个实例中，假设在杆的两端施加有轴向力F，并且在杆上产生了均匀的伸长或者拉紧。通过在杆上人工分割出一个垂直于其轴的截面mm，我们可以分离出杆的部分作为自由体【如图1(b)】。在左端施加有拉力P，在另一个端有一个代表杆上被移除部分作用在仍然保存的那部分的力。这些力是连续分布在横截面的，类似于静水压力在被淹没表面的连续分布。力的集度，也就是单位面积上的力，叫做应力，通常是用希腊字母，来表示。假设应力在横截面上是均匀分布的【如图1(b)】，我们可以很容易的看出它的合力等于集度，乘以杆的横截面积A。而且，从图1所示的物体的平衡，我们可以看出它的合力与力P必须的大小相等，方向相反。因此，我们可以得出等式(1)可以作为棱柱形杆上均匀应力的方程。这个等式表明应力的单位是，力除以面积。当杆被力P拉伸时，如图所示，产生的应力是拉应力，如果力在方向是相反，使杆被压缩，它们就叫做压应力。使等式(1)成立的一个必要条件是，应力，必须是均匀分布在杆的横截面上。如果轴向力P作用在横截面的形心处，那么这个条件就实现了。当力P没有通过形心时，杆会发生弯曲，这就需要更复杂的分析。目前，我们假设所有的轴向力都是作用在横截面的形心处，除非有相反情况特别说明。同样，除非另有说明，一般也假设物体的质量是忽略的，如我们讨论图1的杆

一样。轴向力使杆产生的全部伸长量，用希腊字母δ表示【如图1(a)】，单位长度的伸长量，或者应变，可以用等式来决定。 L是杆的总长。注意应变ε是一个无量纲的量。只要应变是在杆的长度方向均匀的，应变就可以从等式(2)中准确获得。如果杆处于拉伸状态，应变就是拉应变，代表材料的伸长或者延长如果杆处于受压状态，那么应变就是压应变，这也就意味着杆上临近的横截面是互相靠近的。当材料的应力和应变显示的是线性关系时，也就是线弹性。这对多数固体材料来说是极其重要的性质，包括多数金属，塑料，木材，混凝土和陶瓷。处于拉伸状态下，杆的应力和应变间的线性关系可以用简单的等式来表示。E是比例常数，叫做材料的弹性模量。注意E和应力有同样的单位。在英国科学家托马斯·杨(1773 ~ 1829)研究杆的弹性行为之后，弹性模量有时也叫做杨氏模量。对大多数材料来说，压缩状态下的弹性模量与处于拉伸时的弹性模量的一样的。 2、拉伸应力应变行为一个特殊材料中应力和应变的关系是通过拉伸测试来决定的。材料的试样通常是圆棒的形式，被安置在测试机上，承受拉力。当载荷增加时，测量棒上的力和棒的伸长量。力除以横截面积可以得出棒的应力，伸长量除以伸长发生方向的长度可以得出应变。通过这种方式，材料的完整应力应变图就可以得到。图1所示的是结构钢的应力应变图的典型形状，轴向应变显示在水平轴，对应的应力以纵坐标表示为曲线OABCDE。从O点到A点，应力和应变之间是