1、科技英語翻譯復習題1. To transmit electromagnetic waves takes energy. 傳送電磁波需要能量。2. Chemical control will do most of things in pest control.化學防治能在病蟲害防治中起主要作用。3. It is not until wires are connected that the path is completed.直到導線連上以后，此電路才連通。4. The odds are heavily against any man being able to do the work in th

2、e field of abstract theory that Einstein is doing.對任何能從事愛因斯坦正在進行的抽象理論研究的人來說，條件都是極為不利的。5. Oscillator design is of an art rather than an exact science.與其說振蕩器的設計是一門嚴謹的科學，不如說它是一門藝術。6. A rapid decrease by a factor of 7 was observed.發現迅速減少到1/7。7. Birds and animals which hunt at night have eyes which conta

3、in few or no cones at all, so they cannot see colors.凡是在夜間覓食的飛禽走獸，因為眼睛中的視錐細胞數量極少或根本沒有，所以不能辨別顏色。8. Tsunami is sometimes powerful enough to destroy a coastwise building it strikes 海嘯有時威力很大，足可催毀它所沖擊的沿岸的建筑物9. Not everybody is convinced the Leaning Tower of Pisa really can be saved.并非每一個人都相信比薩斜塔真的能夠免于坍塌。

4、10. Every crane has a certain lifting capacity, ranging from a few tons to many hundreds of tones.每臺起重機均有一定的起重力，該起重力從幾噸到幾百噸不等。11. The best solution is to continue to reduce all sources of pollution affecting our atmosphere最好的辦法是繼續減少影響大氣層的各種污染源。12. Quantum chemistry is still in its infancy.量子化學仍處于發展初

5、期。13. It is these drawbacks which need to be eliminated and which have led to the search for new processes.正是因為這些缺點需要加以消除，才導致了對新方法的探求。14. Real-time systems often need extraordinary precautions to guard against possible breakdown of the computer.實時系統往往要特別小心，以防止計算機發生故障。15. The steam engine uses a fire

6、 in a boiler rather than inside the engine.蒸汽機所利用的是鍋爐中的火，而不是發動機里邊的火。16. The principal advantage of the products is a two-fold reduction in weight 這些產品的主要有優點重量減輕了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.

7、我們研究疲勞的目的在于了解產生失效的原因，以便能以最佳的方式加以預防。18. This system will build on the knowledge and experience gained in developing the existing suite of software products.這個系統的基礎是從開發現有的成套軟件產品中所獲取的知識和經驗。19. All metals do not conduct electricity equally well 并非所有的金屬導電性能都同樣好。20. It means that the mass of the comet can

8、not have amounted to as much as one ten-thousandth of that of the earth.這表明這顆彗星的質量甚至不到地球質量的萬分之一。21. Inspection programs help to determine when to replace parts.檢驗計劃有助于確定更換零部件的時間。22. Many health-conscious women increase their risk by rejecting red meat, which contains the most easily absorbed form of

9、 iron.許多保健意識太強的婦女也很危險，因為她們拒絕食用牛肉或羊肉，而這些肉中所含鐵質易被吸收。23. They consider it no use adding more catalysts in the solution.他們認為在溶液里再加催化劑沒有用。24. The entire circuit should be checked against the schematic diagram 應該對照原理圖將整個線路檢查一次25. This is so because the resistance to motion is essentially due to the deform

10、ation of the rolling elements and hence, is not a sliding phenomenon.所以這樣，是因為對運動的阻力基本上源于滾動零件的變形，而不是滑動現象。26. The equipment reduced the error probability by a factor of 5.該設備誤差概率降低了4/5。27. What we commonly call metals are in fact of not metals but alloys我們通常稱作金屬的東西，實際并不是金屬而是合金28. A few people were inf

11、ected with the AIDS virus through blood transfusions.曾有少數人通過輸血傳染上艾滋病毒。29. The performance of the machine is short of the requirements.這臺機器的性能沒有達到要求。30. The major advantage of the transistor as used in electronic circuits are light weight, small space, low power consumption.使用在電子電路中的晶體管的主要優點是重量輕，體積小，

12、耗電量低。31. The specific method of cutting should be employed to decrease the generation of an undue a mount of heat.應采用特殊的切割方法減少過多熱量的產生。32. While this restriction on the size of the circuit holds, this law is valid只要電路尺寸符合上述的限制，這條定律就能適用于該電路33. The “weightless” condition of astronauts in orbit about th

13、e earth arises from just this cancellation of inertial and gravitational forces.圍繞地球運轉時宇航員的失重狀態，就是由于引力與慣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.眾所周知，運動中的電荷在其路途的周圍產生一個環形磁場。35 the calculation o the values involves so many facto

14、rs that only a computer can cope with it這些數值的計算包括如此多的因子，以至于只有計算機才可以應付。36.When the voltage is stepped up by ten times，the strength of the current is stepped down by ten times.電壓升高9倍，電流強度便降低9/10。（?）37. How energy and matter behave, how they interact one with the other, and how we control them make up

15、the substance of two basic physical sciences, physics and chemistry.能量和物質具有什么特性，它們怎樣相互作用以及我們如何控制它們，這就構成了物理和化學這兩門基礎學科的內容。38. For any machine whose input and output forces are known, its mechanical advantage can be calculated.對任何機器來說，如果知其輸入力和輸出力，就能求出其機械效益。39. In such cases an antifriction bearing migh

16、t be a poor answer.這時如果用減摩軸承，可能不是一種好的解決辦法。40. The amount of heat given out by the heater increase in direct proportion to the length of time the heater is on加熱器所放出的熱量與加熱器開的時間愛你長短成正比41. When oxygen was blown into, bacteria were stimulated to eat the toxic wastes.當注入氧氣后，促進細菌吞噬掉有毒的污物。42. The best solut

17、ion that science and medicine have come up with so far is the sleeping pill, which is another mixed blessing.迄今為止，科學和醫學對此提出的最佳解決方案是安眠藥片，但這也是既有利又有弊。43. It follows that radar is an electronic system for locating aircraft or cloud patterns.由此可見，雷達是用來測定飛機位置或云形位置的電子系統。44. An entire disk pack might hold a

18、round 300 million bytes or characters.一個整磁盤可能容納大約3億個信息組或電碼組合。45. Never before have so many people applied such abstract mathematics to so great a variety of problems.從來沒有這么多的人，把如此抽象的數字用于解決種類如此繁多的問題。46. This sort of membrane is twice thinner than ordinary paper.這種薄膜比普通紙要薄一半。47. Electric charges, posi

19、tive and negative, which are responsible for electrical force , can wipe one another out and disappear.產生電場力的正負電荷會相互抵消掉。48. Without the ozone layer，plants and animals would also be affected 如果沒有臭氧層，動植物也將受到影響49. Without the laws of motion as a basis, thousands of discoveries and inventions would have

20、 been out of the question.沒有運動定律作為基礎，不可能有成千上萬的發現和發明。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.生存在我們地球上的物種形成了它們的自然環境，它們以其多樣性保持著與地球和相互之間復雜的平衡性。51. The immunity system of a human body

21、 is beautifully designed to meet most of its problems. 人體免疫系統十分精妙，足以應付大部分疾病。52. Computers come in a wide variety of sizes and capabilities.計算機大小不一，能力各異。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，在這種電路中，電流平均地流過了T1和T2

22、。54. This type of turbine usually rotates at a very high speed, around 20,000 to 25,000 r/m.這種渦輪機通常以非常高的速度運轉，每分鐘約為兩萬到兩萬五千轉。55. As the molecular weights increase, so do the melting and boiling points.隨著分子量的增大，熔點和沸點也提高了。56. Switching time of the new-type transistor is shortened 3 times新型晶體管的開關時間縮短了2/3

23、57. The wire must not be in contact with the air or it will become oxidized and burn out.電線不能與空氣接觸，否則其會生銹并燒掉。58. Entire epochs have been named for material.人們往往用某個材料來命名一個時代。59. Dynamics is a discipline that can not be mastered without extensive practice60.This current changing，the magnetic field wil

24、l change.如果這一電流變化，磁場也會變化。61. They cited cases of identical twins reared in different homes who developed very different characteristics despite identical heredity.他們列舉了一些這樣的事例，在不同的家庭撫養的一對雙胞胎盡管遺傳特性完全相同，但會養成完全不同的個性。62. It goes without saying that agriculture engineering involves both the natural scien

25、ces and the biological sciences.不言而喻，農業工程包括自然科學和生物學。63. The high-voltage transmission lines of most power are arranged as networks.大多數高壓輸電線按網絡方式布局。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安培用來計量電流的流量

26、，就像加侖用來計量水的流量一樣。電流的流量用安培來計算，正像水的流量能夠用每秒加侖來計量一樣65. The hydrogen atom is nearly 16 times as light as the oxygen atom.氫原子的重量約為氧原子重量的16分之1.66. The atmosphere, therefore, is heated by contact with the surface and vertical motion thereby ensures.這樣，大氣由于與地面接觸而被加熱，從而引起了垂直對流。67. Problem should be resolved in

27、 good time有問題要及時加以解決68. The importance of proper lubrication cannot be overemphasized.應特別強調適當進行潤滑的重要性。69. A liquid is made to circulate through pipes in the refrigerator, picking up heat from the food.可以使某種溶液在冰箱的管子中環流，從而帶走事物中的熱量。70. Two spacecraft are being launched to probe the atmosphere of Venus.

28、將發射兩個航天器來探測金星的大氣層。71. After the war much of this knowledge was poured into the developing of the computers.戰后，這項知識大量的應用于研制計算機。72. It has been found that the current mechanism in semi-conductors is entirely different from that in metal conductors人們發現，半導體的電流原理與金屬導體的電流原理完全一樣73. We may picture an atom a

29、s made up of a positive nucleus surrounded by electrons.我們可以設想原子的結構是一個帶正電荷的原子核外面圍著若干電子。74. Frictional forces, too, may also act when there is no relative motion.在沒有相對運動的情況下，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集成電路的產量比去年增加了兩

30、倍。76. Providing that we know both the current and resistance, the voltage can be calculated.知道了電流和電阻，就能求出電流。77. Matter is transported in a circulatory system.循環系統輸送物質。78. Little information is given as to the origin of life.關于生命起源方面的資料極少。79. Lubricated frequently, bearings will wear.即使經常給軸承潤滑，還是會磨損。

31、80. Two cables, thing miles long, run under the sea from English to France從英國到法國的海底，鋪設了兩條30英里長的電纜。81. In developing the design, we must consider the feasibility of processing.在進行設計時，必須考慮加工的可能性。82. It is important to learn when the environment is not good for plants and animals; it is not good for ma

32、n.懂得當環境不利于動植物時也不利于人類這一點是很重要的。83. There might be a massive black hole at the center of our galaxy swallowing up stars at a very rapid rate在銀河系中心也許有一個巨大的黑洞正以極小的速度吞噬星球。84. Too small spacing among the plant stands is causative of the crop failure.株距太小是農作物歉收的原因。85. The efficiency of the machines has been

33、 more than trebled or quadrupled.這些機器的效率已提高了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.當質子總數等于電子總數時，這個物體就整體而言是中性的。87. A special fund has been set up to help these nations use new chemicals and tec

34、hnology.已經建立特殊基金資助這些國家使用新的化學品和技術。88. The motor did not stop because the electricity was off 電機停止逆轉，并非因為電源切斷了89. Knowing the strength, it is possible to work backward and determine what factor of safety was used.由于知道其強度，便可以反過來求出所用的安全系數值。90. When the wires have been joined, care must be taken that wat

35、er and damp cannot get to them.把線接好后，千萬要注意，勿使接頭處粘水或受潮。91. Other isolation methods are being developed目前正在研究其他隔離方法。92. It was not until Madam Curie discovered radium that people have idea of what radioactivity was.直到居里夫人發現鐳以后，人們才開始了解放射性。93. By convention an atom of an element is represented by an abb

36、reviation of the elements name.按照慣例，一種元素的原子由該元素名稱的縮寫來表示。94. The alloy is too cheap for us not to use it widely in industry.這種合金造價很低，我們可以把它廣泛應用于工業上。95. A proton weighs almost 2,000 times as much as does an electron.質子的重量幾乎是電子重量的兩千倍。96. Engineering while not a basic science, draws heavily upon the sci

37、entific disciplines when it goes to any practical field雖然工程學不是一門基礎科學，但它應用任何一個實際領域時都會大量使用在許多學科領域97. No case has ever been found in which conservation of Energy doesnt hold.尚未發現能量守恒定律不適用的情況。98. Under no circumstances can energy be created or destroyed.在任何情況下，能量既不能創造，也不能消滅。99. Heated, water will change

38、 to vapor水受熱后就會汽化。100. In any case work does not include time, but power does 在任何情況下，功都不包括時間，但功率包括時間。101. Being small and light makes transistors more advantageous to vacuum tubes.由于尺寸小，重量輕，晶體管優于真空管。102. Earthquake measured 6.5 on the Richter scale.這次地震震級為6.5里氏震級。103. They are regarded as electrons

39、moving backward in time.它們被認為是逆著時間而運動的負電子。104. With the battery terminals reversed, the result is very different 如果將電池組的接頭反接，結果完全不同105. Light travels at the rate of 300,000 kilometers per second. 光以每秒30萬千米的速度傳播.106. The production of integrated circuits has been increased to three times as compared

40、with last years.集成電路的產量比去年增加了兩倍。107. the lymph does not circulate as the blood does, so its movement depends largely on the squeezing effect of muscle contractions.淋巴不能象血液那樣循環，其運動很大程度上依賴肌肉收縮的擠壓作用。108. The velocity of light is as great as that of radio waves in vacuum.光的速度和無線電波在真空中的速度一樣快。109. An elec

41、tric current produces a magnetic field around it.電流在其周圍產生磁場。110. The speed of the fission is difficult to control.裂變的速度難以控制。111. Compressors can work by throwing out data unimportant to the quality of the image.壓縮程序能刪除那些對圖像整體質量無足輕重的數據。112. We must reflect what the information systems community shoul

42、d be striving to achieve這是信息系統界應追求實現的東西113. This is what the information systems community should be striving to achieve.這是信息系統界應追求實現的東西。114. Copper, with its extremely high coefficient of expansion, expands more during heating than steel does.由于銅的膨脹系數特別高，銅在加熱時比鋼膨脹得多。115. The temperature in the furn

43、ace is not always above 1000 爐子內的溫度并不是總是超過1000攝氏度。116. The output of chemical fertilizer has been raised five times as against 1986.化肥產量比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，能也是儲存的功。118. These atoms are separated by distances larger than their diameter

44、s.這些原子相隔距離的長度超過了它們的直徑。119. Air is not visible, but it is matter.空氣是看不見的，但空氣是物質。120. The immunity system of a human body is beautifully designed to meet of its problems 人體免疫系統十分精妙，足以應付大部分疾病121.It is not always possible to distinguish them (no heritable variations 不遺傳變異)from heritable variations witho

45、ut performing an experiment .不進行試驗要將其（不遺傳變異）與可遺傳變異分開來有時是不可能的。122. A mathematical or logical operation must meet a certain condition.數學操作或邏輯操作必須符合某種條件。123. If the bearing were not lubricated, they would rapidly overheat.假如軸承未加潤滑油的話，軸承很快就會過熱了。124. With its great potential, the wide use of optical comm

46、unications will not come overnight.雖然光通訊有巨大的發展潛力，但它不會在一夜之間就得到廣泛應用。125. The number of known hydrocarbons runs into tens of thousands.已知的碳氫化合物多達幾萬種。126. A record high increase in value of four times was reported.據報道，價值破紀錄地增加了3倍。127. If the temperature rises high enough, the change in the alloy structu

47、re will take place.若溫度升得很高，合金的結構便會發生變化。128. Transistors need much has current, and products much less heat， them comparable electronic valves與相應的電子管相比，晶體管需要的電流小的多，所產生的熱也少得多129. The resistance of a conductor also depends on the kind of substance that it is made of.導體的電阻也取決于導體的物質的種類。130. The best way

48、to achieve this is by using existing internet standards.實現這一點的最有效的方式就是使用現存的因特網的語言標準。131. Future applications for such a system include verifying credit card signatures and automatic teller machine transactions這種系統未來的應用包括驗證信用卡上的簽名和自動出納機的業務。132.Interactive programming condition (交互編程環境)are now availab

49、le for some commercial programming language.交互編程環境現在能用于一些商用編程語言。133. All who have studied this question have come to the same conclusion.研究了這一問題的人都得出了同樣的結論。134. If the vacuum fails, it should be connected without delay.如果真空破壞了，應立即校正。135. The measures reduced the normal death-rate to below 2.5 percen

50、t.這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 這些機器的效率已提高了2倍或3倍多137. Some medical researches think that the HIV virus may not enough by itself to trigger AIDS.有些研究人員認為，HIV 病毒本身也許并不足以引起艾滋病。138. Solids expand much less than liquids or gases.固體的膨脹程

51、度比液體和氣體小得多。139. It is important to learn when the environment is not good for plants and animals; it is not good for man.懂得當環境不利于動植物時，也不利于人類這一點是很重要的。140. Usually there is no necessity to filter this voltage before applying it to the load.這種電壓用于負載時不必先濾波。141. Excess adhesive shall be carefully removed

52、 to prevent running to other surfaces.擦去多余的粘接劑要十分小心，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.過濾器拆卸、檢查及清洗的次數，主要取決于飛機的運行狀況。143. To protect heat from escaping by convection, we used a layer

53、of air about an inch thick.我們使用1英寸厚的空氣層來防止對流引起的熱量散失。144. An atom can lose one or more of its outer electrons without changing its chemical identity 一個原子可能失去其一個或數個外層電子而不改變其化學性能145. The efficiency of the best of these steam locomotives is under 16 percent.這些蒸汽機中，最佳者的效率不足16%。146. With the result of aut

54、omation productivity has increased 6 times in that factory.自動化的結果，那個工廠的生產率增加了5倍。147. It makes itself felt in a circuit only when there is a changing current.只有當電流發生變化時，它才會被人們察覺。148. In liquid the molecules are much closer together than they are in gases.在液體中，分子之間的距離比在氣體中近很多。149. Much work has been d

55、one in order that data can be transmitted by television.人們已做了大量的工作，使情報資料可以通過電視來播送。150. When oxygen was blow into, bacteria were stimulated to eat the toxic wastes.當注入氧氣后，促使細菌吞噬掉有害污物。151. The purpose of a foundation is carrying the load of a structure.地基的作用是承受結構的荷載。152. Packaged software is developed

56、 to serve the specific needs of one user軟件包的開發只是為其一用戶的特定需要服務的153. By conductivity we mean the ability to conduct an electric current.導電性就是指傳導電流的能力。154. With out the telescope, mechanics would have taken a slower course.如果不是發明了望遠鏡，力學的發展可能會遲緩一些。155. The oxygen content of air is about 21%.空氣中的氧氣的含量約為21

57、%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.通貨膨脹沒有得到控制，反而越來越嚴重。158. Nowaday, more and more plastic products are used in place of metal.現在，越來越多的塑料制品被用來代替金屬。159. Much of the heat inside the earth is produced by radioactive elements.地球內部的大部分熱是由放射性元素所產生的。160. The specific method of cutting should be employed to decrease the generation of an undue amount of heat 應采用特殊的切割方法減少過多熱量的產生161. What the TV camera does is breaking the pi