西南交大科技英语翻译复习题.doc

科技英语翻译复习题1. To transmit electromagnetic waves takes energy. 传送电磁波需要能量。2. Chemical control will do most of things in pest control.化学防治能在病虫害防治中起主要作用。3. It is not until wires are connected that the path is completed.直到导线连上以后，此电路才连通。4. The odds are heavily against any man being able to do the work in the field of abstract theory that Einstein is doing.对任何能从事爱因斯坦正在进行的抽象理论研究的人来说，条件都是极为不利的。5. Oscillator design is of an art rather than an exact science.与其说振荡器的设计是一门严谨的科学，不如说它是一门艺术。6. A rapid decrease by a factor of 7 was observed.发现迅速减少到1/7。7. Birds and animals which hunt at night have eyes which contain few or no cones at all, so they cannot see colors.凡是在夜间觅食的飞禽走兽，因为眼睛中的视锥细胞数量极少或根本没有，所以不能辨别颜色。8. Tsunami is sometimes powerful enough to destroy a coastwise building it strikes 海啸有时威力很大，足可催毁它所冲击的沿岸的建筑物9. Not everybody is convinced the Leaning Tower of Pisa really can be saved.并非每一个人都相信比萨斜塔真的能够免于坍塌。10. Every crane has a certain lifting capacity, ranging from a few tons to many hundreds of tones.每台起重机均有一定的起重力，该起重力从几吨到几百吨不等。11. The best solution is to continue to reduce all sources of pollution affecting our atmosphere最好的办法是继续减少影响大气层的各种污染源。12. Quantum chemistry is still in its infancy.量子化学仍处于发展初期。13. It is these drawbacks which need to be eliminated and which have led to the search for new processes.正是因为这些缺点需要加以消除，才导致了对新方法的探求。14. Real-time systems often need extraordinary precautions to guard against possible breakdown of the computer.实时系统往往要特别小心，以防止计算机发生故障。15. The steam engine uses a fire in a boiler rather than inside the engine.蒸汽机所利用的是锅炉中的火，而不是发动机里边的火。16. The principal advantage of the products is a two-fold reduction in weight 这些产品的主要有优点重量减轻了1/2 17. Our primary purpose in studying fatigue is to understand why failures occur so that we can guard against them in an optimum manner.我们研究疲劳的目的在于了解产生失效的原因，以便能以最佳的方式加以预防。18. This system will build on the knowledge and experience gained in developing the existing suite of software products.这个系统的基础是从开发现有的成套软件产品中所获取的知识和经验。19. All metals do not conduct electricity equally well 并非所有的金属导电性能都同样好。20. It means that the mass of the comet cannot have amounted to as much as one ten-thousandth of that of the earth.这表明这颗彗星的质量甚至不到地球质量的万分之一。21. Inspection programs help to determine when to replace parts.检验计划有助于确定更换零部件的时间。22. Many health-conscious women increase their risk by rejecting red meat, which contains the most easily absorbed form of iron.许多保健意识太强的妇女也很危险，因为她们拒绝食用牛肉或羊肉，而这些肉中所含铁质易被吸收。23. They consider it no use adding more catalysts in the solution.他们认为在溶液里再加催化剂没有用。24. The entire circuit should be checked against the schematic diagram 应该对照原理图将整个线路检查一次25. This is so because the resistance to motion is essentially due to the deformation of the rolling elements and hence, is not a sliding phenomenon.所以这样，是因为对运动的阻力基本上源于滚动零件的变形，而不是滑动现象。26. The equipment reduced the error probability by a factor of 5.该设备误差概率降低了4/5。27. What we commonly call metals are in fact of not metals but alloys我们通常称作金属的东西，实际并不是金属而是合金28. A few people were infected with the AIDS virus through blood transfusions.曾有少数人通过输血传染上艾滋病毒。29. The performance of the machine is short of the requirements.这台机器的性能没有达到要求。30. The major advantage of the transistor as used in electronic circuits are light weight, small space, low power consumption.使用在电子电路中的晶体管的主要优点是重量轻，体积小，耗电量低。31. The specific method of cutting should be employed to decrease the generation of an undue a mount of heat.应采用特殊的切割方法减少过多热量的产生。32. While this restriction on the size of the circuit holds, this law is valid只要电路尺寸符合上述的限制，这条定律就能适用于该电路33. The “weightless” condition of astronauts in orbit about the earth arises from just this cancellation of inertial and gravitational forces.围绕地球运转时宇航员的失重状态，就是由于引力与惯性力相互抵消的原因。34. It is well-known that a moving electrical charge generates a circular magnetic field around its path.众所周知，运动中的电荷在其路途的周围产生一个环形磁场。35 the calculation o the values involves so many factors that only a computer can cope with it这些数值的计算包括如此多的因子，以至于只有计算机才可以应付。36.When the voltage is stepped up by ten times，the strength of the current is stepped down by ten times.电压升高9倍，电流强度便降低9/10。（?）37. How energy and matter behave, how they interact one with the other, and how we control them make up the substance of two basic physical sciences, physics and chemistry.能量和物质具有什么特性，它们怎样相互作用以及我们如何控制它们，这就构成了物理和化学这两门基础学科的内容。38. For any machine whose input and output forces are known, its mechanical advantage can be calculated.对任何机器来说，如果知其输入力和输出力，就能求出其机械效益。39. In such cases an antifriction bearing might be a poor answer.这时如果用减摩轴承，可能不是一种好的解决办法。40. The amount of heat given out by the heater increase in direct proportion to the length of time the heater is on加热器所放出的热量与加热器开的时间爱你长短成正比41. When oxygen was blown into, bacteria were stimulated to eat the toxic wastes.当注入氧气后，促进细菌吞噬掉有毒的污物。42. The best solution that science and medicine have come up with so far is the sleeping pill, which is another mixed blessing.迄今为止，科学和医学对此提出的最佳解决方案是安眠药片，但这也是既有利又有弊。43. It follows that radar is an electronic system for locating aircraft or cloud patterns.由此可见，雷达是用来测定飞机位置或云形位置的电子系统。44. An entire disk pack might hold around 300 million bytes or characters.一个整磁盘可能容纳大约3亿个信息组或电码组合。45. Never before have so many people applied such abstract mathematics to so great a variety of problems.从来没有这么多的人，把如此抽象的数字用于解决种类如此繁多的问题。46. This sort of membrane is twice thinner than ordinary paper.这种薄膜比普通纸要薄一半。47. Electric charges, positive and negative, which are responsible for electrical force , can wipe one another out and disappear.产生电场力的正负电荷会相互抵消掉。48. Without the ozone layer，plants and animals would also be affected 如果没有臭氧层，动植物也将受到影响49. Without the laws of motion as a basis, thousands of discoveries and inventions would have been out of the question.没有运动定律作为基础，不可能有成千上万的发现和发明。50. The species that live on our Earth form its natural environment ,and in their diversity they maintain an intricate balance with the Earth and with each other.生存在我们地球上的物种形成了它们的自然环境，它们以其多样性保持着与地球和相互之间复杂的平衡性。51. The immunity system of a human body is beautifully designed to meet most of its problems. 人体免疫系统十分精妙，足以应付大部分疾病。52. Computers come in a wide variety of sizes and capabilities.计算机大小不一，能力各异。53. It is at once apparent that the current flows through T1 and T2 on a half and half basis in this circuit configuration.一目了然，在这种电路中，电流平均地流过了T1和T2。54. This type of turbine usually rotates at a very high speed, around 20,000 to 25,000 r/m.这种涡轮机通常以非常高的速度运转，每分钟约为两万到两万五千转。55. As the molecular weights increase, so do the melting and boiling points.随着分子量的增大，熔点和沸点也提高了。56. Switching time of the new-type transistor is shortened 3 times新型晶体管的开关时间缩短了2/357. The wire must not be in contact with the air or it will become oxidized and burn out.电线不能与空气接触，否则其会生锈并烧掉。58. Entire epochs have been named for material.人们往往用某个材料来命名一个时代。59. Dynamics is a discipline that can not be mastered without extensive practice60.This current changing，the magnetic field will change.如果这一电流变化，磁场也会变化。61. They cited cases of identical twins reared in different homes who developed very different characteristics despite identical heredity.他们列举了一些这样的事例，在不同的家庭抚养的一对双胞胎尽管遗传特性完全相同，但会养成完全不同的个性。62. It goes without saying that agriculture engineering involves both the natural sciences and the biological sciences.不言而喻，农业工程包括自然科学和生物学。63. The high-voltage transmission lines of most power are arranged as networks.大多数高压输电线按网络方式布局。64. Just as the rate of the flow of water can be measured in gallons per second, so is the rate of the flow of electricity measured in amperes安培用来计量电流的流量，就像加仑用来计量水的流量一样。电流的流量用安培来计算，正像水的流量能够用每秒加仑来计量一样65. The hydrogen atom is nearly 16 times as light as the oxygen atom.氢原子的重量约为氧原子重量的16分之1.66. The atmosphere, therefore, is heated by contact with the surface and vertical motion thereby ensures.这样，大气由于与地面接触而被加热，从而引起了垂直对流。67. Problem should be resolved in good time有问题要及时加以解决68. The importance of proper lubrication cannot be overemphasized.应特别强调适当进行润滑的重要性。69. A liquid is made to circulate through pipes in the refrigerator, picking up heat from the food.可以使某种溶液在冰箱的管子中环流，从而带走事物中的热量。70. Two spacecraft are being launched to probe the atmosphere of Venus.将发射两个航天器来探测金星的大气层。71. After the war much of this knowledge was poured into the developing of the computers.战后，这项知识大量的应用于研制计算机。72. It has been found that the current mechanism in semi-conductors is entirely different from that in metal conductors人们发现，半导体的电流原理与金属导体的电流原理完全一样73. We may picture an atom as made up of a positive nucleus surrounded by electrons.我们可以设想原子的结构是一个带正电荷的原子核外面围着若干电子。74. Frictional forces, too, may also act when there is no relative motion.在没有相对运动的情况下，也可以有摩擦力的作用。75. The production of integrated circuits has been increased to three times as compared with last year集成电路的产量比去年增加了两倍。76. Providing that we know both the current and resistance, the voltage can be calculated.知道了电流和电阻，就能求出电流。77. Matter is transported in a circulatory system.循环系统输送物质。78. Little information is given as to the origin of life.关于生命起源方面的资料极少。79. Lubricated frequently, bearings will wear.即使经常给轴承润滑，还是会磨损。80. Two cables, thing miles long, run under the sea from English to France从英国到法国的海底，铺设了两条30英里长的电缆。81. In developing the design, we must consider the feasibility of processing.在进行设计时，必须考虑加工的可能性。82. It is important to learn when the environment is not good for plants and animals; it is not good for man.懂得当环境不利于动植物时也不利于人类这一点是很重要的。83. There might be a massive black hole at the center of our galaxy swallowing up stars at a very rapid rate在银河系中心也许有一个巨大的黑洞正以极小的速度吞噬星球。84. Too small spacing among the plant stands is causative of the crop failure.株距太小是农作物歉收的原因。85. The efficiency of the machines has been more than trebled or quadrupled.这些机器的效率已提高了2倍或3倍多。86. As far as a whole is concerned, the body is electrically neutral, when the total number of protons equals the total number of electrons.当质子总数等于电子总数时，这个物体就整体而言是中性的。87. A special fund has been set up to help these nations use new chemicals and technology.已经建立特殊基金资助这些国家使用新的化学品和技术。88. The motor did not stop because the electricity was off 电机停止逆转，并非因为电源切断了89. Knowing the strength, it is possible to work backward and determine what factor of safety was used.由于知道其强度，便可以反过来求出所用的安全系数值。90. When the wires have been joined, care must be taken that water and damp cannot get to them.把线接好后，千万要注意，勿使接头处粘水或受潮。91. Other isolation methods are being developed目前正在研究其他隔离方法。92. It was not until Madam Curie discovered radium that people have idea of what radioactivity was.直到居里夫人发现镭以后，人们才开始了解放射性。93. By convention an atom of an element is represented by an abbreviation of the elements name.按照惯例，一种元素的原子由该元素名称的缩写来表示。94. The alloy is too cheap for us not to use it widely in industry.这种合金造价很低，我们可以把它广泛应用于工业上。95. A proton weighs almost 2,000 times as much as does an electron.质子的重量几乎是电子重量的两千倍。96. Engineering while not a basic science, draws heavily upon the scientific disciplines when it goes to any practical field虽然工程学不是一门基础科学，但它应用任何一个实际领域时都会大量使用在许多学科领域97. No case has ever been found in which conservation of Energy doesnt hold.尚未发现能量守恒定律不适用的情况。98. Under no circumstances can energy be created or destroyed.在任何情况下，能量既不能创造，也不能消灭。99. Heated, water will change to vapor水受热后就会汽化。100. In any case work does not include time, but power does 在任何情况下，功都不包括时间，但功率包括时间。101. Being small and light makes transistors more advantageous to vacuum tubes.由于尺寸小，重量轻，晶体管优于真空管。102. Earthquake measured 6.5 on the Richter scale.这次地震震级为6.5里氏震级。103. They are regarded as electrons moving backward in time.它们被认为是逆着时间而运动的负电子。104. With the battery terminals reversed, the result is very different 如果将电池组的接头反接，结果完全不同105. Light travels at the rate of 300,000 kilometers per second. 光以每秒30万千米的速度传播.106. The production of integrated circuits has been increased to three times as compared with last years.集成电路的产量比去年增加了两倍。107. the lymph does not circulate as the blood does, so its movement depends largely on the squeezing effect of muscle contractions.淋巴不能象血液那样循环，其运动很大程度上依赖肌肉收缩的挤压作用。108. The velocity of light is as great as that of radio waves in vacuum.光的速度和无线电波在真空中的速度一样快。109. An electric current produces a magnetic field around it.电流在其周围产生磁场。110. The speed of the fission is difficult to control.裂变的速度难以控制。111. Compressors can work by throwing out data unimportant to the quality of the image.压缩程序能删除那些对图像整体质量无足轻重的数据。112. We must reflect what the information systems community should be striving to achieve这是信息系统界应追求实现的东西113. This is what the information systems community should be striving to achieve.这是信息系统界应追求实现的东西。114. Copper, with its extremely high coefficient of expansion, expands more during heating than steel does.由于铜的膨胀系数特别高，铜在加热时比钢膨胀得多。115. The temperature in the furnace is not always above 1000 炉子内的温度并不是总是超过1000摄氏度。116. The output of chemical fertilizer has been raised five times as against 1986.化肥产量比1986年增加了4倍。117. Energy is the ability to do work, energy is also stored work.能是做功的能力，能也是储存的功。118. These atoms are separated by distances larger than their diameters.这些原子相隔距离的长度超过了它们的直径。119. Air is not visible, but it is matter.空气是看不见的，但空气是物质。120. The immunity system of a human body is beautifully designed to meet of its problems 人体免疫系统十分精妙，足以应付大部分疾病121.It is not always possible to distinguish them (no heritable variations 不遗传变异)from heritable variations without performing an experiment .不进行试验要将其（不遗传变异）与可遗传变异分开来有时是不可能的。122. A mathematical or logical operation must meet a certain condition.数学操作或逻辑操作必须符合某种条件。123. If the bearing were not lubricated, they would rapidly overheat.假如轴承未加润滑油的话，轴承很快就会过热了。124. With its great potential, the wide use of optical communications will not come overnight.虽然光通讯有巨大的发展潜力，但它不会在一夜之间就得到广泛应用。125. The number of known hydrocarbons runs into tens of thousands.已知的碳氢化合物多达几万种。126. A record high increase in value of four times was reported.据报道，价值破纪录地增加了3倍。127. If the temperature rises high enough, the change in the alloy structure will take place.若温度升得很高，合金的结构便会发生变化。128. Transistors need much has current, and products much less heat， them comparable electronic valves与相应的电子管相比，晶体管需要的电流小的多，所产生的热也少得多129. The resistance of a conductor also depends on the kind of substance that it is made of.导体的电阻也取决于导体的物质的种类。130. The best way to achieve this is by using existing internet standards.实现这一点的最有效的方式就是使用现存的因特网的语言标准。131. Future applications for such a system include verifying credit card signatures and automatic teller machine transactions这种系统未来的应用包括验证信用卡上的签名和自动出纳机的业务。132.Interactive programming condition (交互编程环境)are now available for some commercial programming language.交互编程环境现在能用于一些商用编程语言。133. All who have studied this question have come to the same conclusion.研究了这一问题的人都得出了同样的结论。134. If the vacuum fails, it should be connected without delay.如果真空破坏了，应立即校正。135. The measures reduced the normal death-rate to below 2.5 percent.这些措施使人口的正常死亡率下降到2.5%以下。136. The efficiency of the machines has been more that trebled or quadrupled 这些机器的效率已提高了2倍或3倍多137. Some medical researches think that the HIV virus may not enough by itself to trigger AIDS.有些研究人员认为，HIV 病毒本身也许并不足以引起艾滋病。138. Solids expand much less than liquids or gases.固体的膨胀程度比液体和气体小得多。139. It is important to learn when the environment is not good for plants and animals; it is not good for man.懂得当环境不利于动植物时，也不利于人类这一点是很重要的。140. Usually there is no necessity to filter this voltage before applying it to the load.这种电压用于负载时不必先滤波。141. Excess adhesive shall be carefully removed to prevent running to other surfaces.擦去多余的粘接剂要十分小心，以免流到其他表面上。142. The frequency with which the filter should be removed, inspector and cleaned will be determined primarily by aircraft operating conditions.过滤器拆卸、检查及清洗的次数，主要取决于飞机的运行状况。143. To protect heat from escaping by convection, we used a layer of air about an inch thick.我们使用1英寸厚的空气层来防止对流引起的热量散失。144. An atom can lose one or more of its outer electrons without changing its chemical identity 一个原子可能失去其一个或数个外层电子而不改变其化学性能145. The efficiency of the best of these steam locomotives is under 16 percent.这些蒸汽机中，最佳者的效率不足16%。146. With the result of automation productivity has increased 6 times in that factory.自动化的结果，那个工厂的生产率增加了5倍。147. It makes itself felt in a circuit only when there is a changing current.只有当电流发生变化时，它才会被人们察觉。148. In liquid the molecules are much closer together than they are in gases.在液体中，分子之间的距离比在气体中近很多。149. Much work has been done in order that data can be transmitted by television.人们已做了大量的工作，使情报资料可以通过电视来播送。150. When oxygen was blow into, bacteria were stimulated to eat the toxic wastes.当注入氧气后，促使细菌吞噬掉有害污物。151. The purpose of a foundation is carrying the load of a structure.地基的作用是承受结构的荷载。152. Packaged software is developed to serve the specific needs of one user软件包的开发只是为其一用户的特定需要服务的153. By conductivity we mean the ability to conduct an electric current.导电性就是指传导电流的能力。154. With out the telescope, mechanics would have taken a slower course.如果不是发明了望远镜，力学的发展可能会迟缓一些。155. The oxygen content of air is about 21%.空气中的氧气的含量约为21%156. The melting point of this metal is greater than that of copper by approximately 2.5 times 157. Inflation could not be controlled, but rather got worse and worse.通货膨胀没有得到控制，反而越来越严重。158. Nowaday, more and more plastic products are used in place of metal.现在，越来越多的塑料制品被用来代替金属。159. Much of the heat inside the earth is produced by radioactive elements.地球内部的大部分热是由放射性元素所产生的。160. The specific method of cutting should be employed to decrease the generation of an undue amount of heat 应采用特殊的切割方法减少过多热量的产生161. What the TV camera does is breaking the pi