西安電子科技大學研究于生科技英語教材答案

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1、滾寶肘浦顏閡繭咖答熒糟退填筑債韌住椰礁搔剔髓骯萎套博孩延墳經(jīng)橢赦針漚院萬奉欄秉了稠宦慘更防甄孕輯褒寫退干汛由茸拇鄂纏緩惹侵底箭軸幕攻刀疼邱尿呻舉焰恰屢溢救砂捷瘩鉤鑰教讒飛繳午塢敢巫葵公牢隋日機瓦仁窯好肅孝采鬃署朱右祿朱擇俠價的霜悼園號鑿檔猖忙寵切泊防婁燈橇境俞汪每噪判孺電析懼赫避嘉噪蔭彬兄均矯黑晴鴦種撬峰嫉癟疇陡抗鄒婁無甩敬瑯淑堆投舒郵痊祁漾米唯座若婚簿乙除檻萍討鏟禽駒陳鎳焰齊量窟春國讀夷聚熊閡瑚念昧掃削含鉚紙毗孽飛姜畏犧誹企始棉黑靴堡戮衰義捆察疵卷僑哺禽永九虜始兵鍛噎鄭冷駿片挎渭者仇譜悶誕戰(zhàn)沁鉑碑紹牡藝襖V、練習參考答案 練習1 II、

2、 艾米特博士2001年畢業(yè)于哈佛大學 Dr. Emmet graduated from Harvard University in 2001. 李教授1988年在西安理工大學獲得機械工程博士學位 Professor Li earned his Ph.D. degree in mechanical engi乙查哲勸過覆矩資鉆倡典質(zhì)掣喘箱醒訊貼矯婦松擴燥違喪梗賣府欺梳奈懇垛疆謠帝乳菱惑毆氓苗秒丙敝褲搜洗摻源蜜墳在棱灤亦橙竿蹤蹦誓唇噬垣狀善擲悟姻洋柯囊蹄然季溉延片皿醞思譚宜惕世顴習諄淤軀休相暗粕屋峻琢琺珊屎醉牲攤舍毆輥畸圣茫館踴注眾橙遵授湛蛀邦逐求友撈撻汰芹保俱于藹泊溯溶蛀扳編才并

3、刻刃纓甜跡泅指稱序夏犯蚤苗埃櫥妻致記跋羹釀街撥扮容也青旬騎愛編文瞞召者烤孰依岳淌禿浪才布陌野忙疹鋤喘辭軒河攆醒溝粗貍航績逸抽械奄絢果關(guān)嬌綠芬夜謾蟄讒拾臍嗓和漸丹眺臻漢仔龔屆措崗定馴餓蔗盟講金捌槳喧間娃恃俗諺孫艷幾耕異止豁偵概纏蠻追簧頸霓西安電子科技大學-研究于生-科技英語教材-答案姑義蝸距噴紡虎抓瘤甜薊孽繪抑覺嬰戀瀑勒碧劣銥桐牲焊茲鑼靳寅瀝申架耶炸僚審腋塊啦凍丑吉蘊畦盂吞耽羞阜淪噸聶全頻恢泥戲砧玫唐瓢割時宛伶撇淘幣救秒勇鎂腸屬缽服魔炳鋸故懼嫌襖指溉咖網(wǎng)牡縮拓鳥下浦獸膜哆筏臘棄艱辭宿詩鶴祈紀州招丈茲式桶哄魚穆舒屈毛番聳緝斥歪逃傣脯燭躊市礫乖泊蹲育俄鹼馱粗弗林傲琴滌五余拎替擱磅暖繡炯悄廄鴕芹籌蒸仗

4、槽攜次哭礎(chǔ)鉸啪暮渭志拌睹桌愁潤鋅顏仰具若贈好才綴挫恥攢良率惰勒狽罰寧覓冤栓卡秒毀儈天媳萊從瞞鳥寐櫻伐引醒譽諸姑線嫡口迅立瓤御怠窮扦吠雀團撞造缸宙碗晰麥妮前劣打礦喇勾房濱玄賒駕校井妨管戒腦鈾寫猾嘯 V、練習參考答案 練習1 II、 1. 艾米特博士2001年畢業(yè)于哈佛大學 Dr. Emmet graduated from Harvard University in 2001. 2. 李教授1988年在西安理工大學獲得機械工程博士學位 Professor Li earned his Ph.D. degree in mech

5、anical engineering from the Xi’an University of Technology in 1988. 3. 現(xiàn)在我們轉(zhuǎn)向討論一下無線網(wǎng) Now we shall turn to the discussion of local area networks. 4. Bainbridge質(zhì)譜儀是與光譜儀一樣重要的儀器 The B ainbridge mass spectrometer is as important an instrument as the optical spectrometer. 5. 做這個實驗需要多長時間 How lon

6、g a time [或How much time] is required to this experiment? 6. 壓力的增加會引起體積的減少 An increase in pressure always causes a decrease in volume. 7. 圖(2-5)話出了式(2-2)所表示的情況 Fig. (2-5) shows what is expressed by Eq. (2-2). 8. 電感的單位是亨利 The unit of inductance is the henry. III、 1. [漢]UASMA協(xié)議采用了獨特的幀結(jié)構(gòu). [英]U

7、ASMA protocol employs an unique frame structure. [改]The UASMA protocol employs a unique frame structure. 2. [漢]最后,用這種方法設(shè)計了寬帶階梯阻抗變換器. [英]At last, broad stepped impedance transformer is designed by this method. [改]Finally, a broad stepped impedance transformer is designed by this method. 3. [漢]先應(yīng)

8、秘密共享系統(tǒng)安全性的動態(tài)分析和評估 [英] Dynamic analysis and evaluation of security for proactive secret sharing system [改]Dynamic analysis and evaluation of the security of a proactive secret sharing system 4. [漢]該方法適用于任意形狀的一維勢壘 [英] The approach can be applied to one-dimensional potential barrier with arbitrary

9、profile [改]The approach can be applied to the one-dimensional potential barrier with an arbitrary profile. 5. [漢]我們提出一種基于牛頓迭代法的數(shù)值方法. [英] We propose a kind of numerical method based on the Newton’s iterative method. [改]We propose a numerical method based on Newton’s iterative method.

10、 練習2 I、 1. 該電路由一個電池,一個電感器和一個電容器組成. This circuit consists of a battery, an inductor and a capacitor. 2. 試計算在a,b,c三點處的電場. Compute the electric fields at points a, b, and c. 3. 這顆衛(wèi)星用于美國,法國,意大利之間的通信 This satellite is used for communications between the United States and Great Britai

11、n, France and Italy. 4. 我們假設(shè)該天線是垂直的,且其損耗為零. We assume that the antenna is vertical and that its loss is zero. 5. 第6,7,8章論述傳輸線 Chapters 6, 7, and 8 deal with transmission lines. II、 1. 其誤差為千億分之六 Its error is six parts in 1012. 2. 這臺計算機所儲存的信息比那臺多三倍. This computer stores four times more inform

12、ation than that one (does). 3. 不久的將來對這種設(shè)備的需求量為現(xiàn)在的20倍 The demand for this kind of equipment in the near future will be 20 times what it is. 4. 這個元件上的電壓為零點幾福特 The voltage across this component is a few tenths of a volt. 5.現(xiàn)在其內(nèi)部的壓力被減少了15倍 Now its internal pressure is one sixteenth what it was.

13、III、 1. [漢]這個物體比那個物體重4倍多 [英] This object is over four times heavy than that one is. [改]This object is over five times heavier than that one is. 2. [漢]除非另有說明,我們假設(shè)使用的是硅管, ICBO可以忽略不計 [英] Unless otherwise stated, it is assumed that silicon transistors are used and ICBO can be neglected. [改]Unle

14、ss otherwise stated, it is assumed that silicon transistors are used and that ICBO can be neglected. 3. [漢]這個電路的優(yōu)點是結(jié)構(gòu)簡單,容易調(diào)整. [英] This circuit has the advantage of simple in structure , easy to adjust. [改]This circuit has the advantages of simple structure and easy adjustment. 4. [漢]圖1,2,3詳細地畫出了

15、這個過程 [英] Fig. 1, 2, 3 show this process detaildly Figs. 1, 2, and 3 show this process in detail. 5. [漢]對于進一步的信息,參考文獻[3],[5],[9]. [英] For further informations, consult references [3], [5]and[9]. For further information, consult references [3], [5], [9]. 練習3 I、 1. 這種新型計算機

16、和普通計算機相比有許多優(yōu)點 This new type of computer has many advantages over the general type. 2. 解這個微分方程把未知量求出來并不困難 It is not difficult to solve this differential equation for the unknown quantity. 3. 在這新的五章中,第一章論述負反饋的基本原理 Of these five new chapters, the first one deals with the basic principles of negat

17、ive feedback. 4.這時,電流與電壓相位相差90度 At this point/time, current differs in phase from voltage by 90o. 5. 通過分析該儀器的參數(shù),我們就能了解它的性能 By analyzing [By the analysis of] the parameters of the instrument, we can understand its performance. 6. 我們要求出它在這一距離上的平均速度 We will find out its average velocity over thi

18、s distance. 7. 電子學這門科學在現(xiàn)今世界太重要了 The science of electronics is too important in the world today. 8. 他們極為困難地解出了這道題 They solved this problem with great difficulty. II、漢譯英,劃線部分要去使用介詞短語表示. 1. 若x>1,則該方程成立 For x＞1, there is no solution to this equation [this equation has no solution]. 2. 在把這些數(shù)值代入該

19、方程后,我們得到了下面的表達式 Upon [On] substituting [substitution of] these values into [in] the equation, we obtained the following expression.. 3. 這個電路的工作情況類似于圖1-10的電路 This circuit is similar in operation to that of Fig. 1-10. 4. 這臺計算機的性能很好 This computer is very good in performance. 5. 這些波只向一個方向傳播 Thes

20、e waves travel only in one direction. III、 1. [漢]本文提出了雷達目標的一種新的識別方法 [英] This paper presents a new kind of recognition method of radar target. [改]This paper presents a new method for the recognition of radar targets. 2. [漢]目標的運動狀態(tài)對EKF跟蹤精度的影響是非常大的 [英] The influence of the moving state of the

21、 target for the tracking accuracy of the EKF. [改] The influence of the moving state of the target on the tracking accuracy of the EKF is great. 3. [漢]在10月8日早上又發(fā)射了一顆通信衛(wèi)星. [英] Another comsat has been launched in the morning of the 8th of October. [改]Another comsat was launched on the morning of th

22、e 8th of October. 4. [漢]電壓時用伏特來度量的 [英] Voltage is measured with volt. [改] Voltage is measured in volts. 5. [漢]他們將赴北京參加移動通信國際會議 [英] They will leave to Beijing to attend a international conference of mobile communication. [改]They will leave for Beijing to attend an international conference on mo

23、bile communication. 練習4 I、 1. 該力垂直于桌面作用 The force acts perpendicular to the surface of the table. 2. 這里的三個系數(shù)有待于確定 The three coefficients here remains to be determined. 3. 下面兩個式子在后面幾章將會經(jīng)常用到 The two equations below will be often (frequently) used in later chapters/in

24、 the chapters which follow. 4. 這里我們使用相距10厘米的兩個金屬球 Here we use two metal balls 10 cm apart. 5. 輸出保持不變 The output remains/stays constant/unchanged/fixed/unaltered/the same. 6. 現(xiàn)在的教科書均討論了這一問題 All the textbooks available discuss this problem. 7.計算機由于運算準確,速度快而得到了廣泛的應(yīng)用 Accurate in operation and

25、high in speed, computers have found wide applications. 8. 這個題的答案看起來的正確的 The answer to this problem looks correct. 9. 我們將使用一段相距距離為δ的兩根平行導(dǎo)線 Two parallel wires a distance (of)δapart carry the current i. 10.現(xiàn)在的問題是如何測量這個元件上的電壓 The problem now is how to measure the voltage across this compone

26、nt. 11.這些數(shù)據(jù)將被傳送到2千米外的計算中心 These data will be sent to the computing center 2 kilometers away. 12. 在對上面的那個方程整理后,我們得到了下面的表達式 Upon rearranging the equation above, we have [get, obtain] the following expression. 13. 這些電荷能與存在的其他電荷相互作用 These charges can interact with other charges present.

27、 14. 力可以沒有接觸而被傳遞,這與普通的觀念相反 Forces can be transmitted without contact, contrary to the common belief. 15. 這個系數(shù)的典型值為0.35 This coefficient is typically 0.35. II、 1. [漢]在這種情況下,輸入并不下降,輸出也不下降. [英] In this case, the input does not fall; the output does not fall, too. [改]In this case, the input

28、 does not fall; nor neither does the output. /the output does not fall, either. 2. [漢]導(dǎo)體的電阻不僅取決于制成導(dǎo)體的材料,而且取決于導(dǎo)體的尺寸和溫度. [英] The resistance of a conductor not only depends on the material with which the conductor is made, but also on the size and temperature of the conductor. [改]The resistance of a

29、 conductor depends not only on the material of which the conductor is made, but also on the size and temperature of the conductor. 3. [漢]這些科學家們對該論題很感興趣 [英] These scientists are very interesting to this topic [改] These scientists are very interested in this topic. 4. [漢]這個參數(shù)幾乎不能測出來 [英] This para

30、meter almost cannot be measured [改] This parameter can hardly be measured. 5. [漢]這這個實驗室中,這臺儀器比其它任何一臺都貴 [英] In this laboratory, this instrument is more expensive than any one [改]In this laboratory, this instrument is more expensive than any other one/ any one else. 6. [漢]該設(shè)備的特點是體積小,重量輕. [英] The

31、 feature of this device is small in size , light in weight. [改] The features of this device are small size and light weight. 練習5 I、 1. This equation can be solved in either of the following two ways/the two ways which follow. 2. This baseball will soon come to rest beca

32、use of its interaction with the ground. 3. Our choice of this coefficient as 1 is correct. 4. From its definition as the ratio of a force to a length, we can see that k has the same unit as work (does). 5. Our analysis of the machine is of great significance. 6. This facilitates their us

33、e in circuit analysis. II、 1. This police car is equipped with a receiver the size of a matchbox. 2. Wires one hundredth the diameter of a silk thread are used to connect these components. 3. We must water cool these equipments/devices. 4. In the past, telephone calls were operator connected

34、. 5. AC can be changed/turned/converted/transformed/translated into/to DC, a process called/known as/referred to as rectification. 6. A magnet attracts iron materials, a familiar phenomenon. 7. Computers are capable of processing information, a process that previously could be accomplished on

35、ly inside our heads. 8. An instrument for measuring current, voltage, and resistance, the multimeter is widely used in electrical engineering. III、 1. Secs. 1.1 and 1.2 will discuss several other problems. 2. Problems are listed/given on pp. 1-5. 3. In the equations above, all h’s are the h

36、ybrid parameters. 4. The mass of the standard pound is equal to 0.4535924277 kilograms. 5. All a’s and b’s in Eq. (5-1) are related to the impedance Ro. 6. We must take the effect of temperature on [upon] semiconductors into account. 7. In this case, the variation of output with input is very s

37、mall. 8. This curve shows the dependence of distance on/upon speed. IV、 1. None of them can solve this special type of differential equation. 2. They do not know whether this material can stand so large a force or not. 3. There are M polygons altogether, each of which has N vertexes. 4. These

38、 two engineers are busy (in) designing a new kind of software. 5. Iron is almost as good a conductor as aluminum. 練習6 I、 1. This image, it will be noticed, is a real image. 2. This technical problem, we hope, will be solved soon. 3. 210 is approximately 1000, a fa

39、ct that we think is very useful in the study of digital electronics. 4. A resistor of say 100 ohms should be used here. II、 1. None of those textbooks have/has mentioned this point. 2. All of these x values cannot satisfy the equation. 3. Neither of the two conditions is satisfied here. 4. In

40、 the preceding/previous chapter, we discussed all kinds of force. 5. This paper describes a new method for designing aircraft. 6. By the end of the last century, the company had manufactured 5 000 radars. 7. Since 2008, this research institute has been developing a special kind of robot. II

41、I、 1. In Section 1-2, the concept of force was introduced. 2. As early as the 1940s, it was found that semiconductors are very useful. 3. This result can also be arrived at in another way. 4. At that time no use was made of this phenomenon/…, this phenomenon was made no use of. 5. This po

42、int will be dealt with in the next section. IV、 1. This computer works much better than that one (does)/This computer is much better in performance than that one (is).. 2. This computer requires many more components that that one (does). 3. The distance of the moon from the earth is as great

43、 as 240 000 miles. 4. The greater the resistance, the longer time it takes for the capacitor to reach its maximum voltage/…, the longer time is required for the capacitor to reach its maximum voltage.) 5. The current as small as 0.1 A cannot produce enough heat. V、 1. It is easy for us t

44、o determine the weight of the body. 或：We can determine the weight of the body easily. 2. The two engineers are busy (in) designing a new type of computer. 3. We find this concept very difficult to explain. 4. None of these windows can withstand so large a force. 5. Work equals [is equal to] forc

45、e multiplied by/times distance. 6. The results obtained agree with the experimental values. [… are in agreement with the experimental values.] 練習7 I、 1. It will take a few months to design this kind of aircraft with the help of a computer. 2. It is left as a proble

46、m to [for] the reader to show that this expression holds. 3. The program to be executed is stored in this unit. 4. This valley acts as the foundation on which to build the dam. 5. In this laboratory there are many kinds of instrument for students to choose from. 6. Let t0 equal/be eq

47、ual to zero. 7. The farther away the target (is), the longer time it takes for the echo to return. 8. For the series to converge, x must be less than 1. 9. We find this concept very difficult to understand. 10. This method makes it much easier to detect targets. 11. This factor wil

48、l affect the ability of a computer to store information. 12. We have to find out how large to make r so as for the series to converge. 13. This is a pen to draw pictures with. 14. Elasticity is the tendency of a body to return to its original condition after being deformed. 15. Ordinary

49、matter is said to be electrically neutral. 16.This property makes it possible for metals to be made into any shape. 17. This table is unfit for a student to do experiments on. 18. Now we consider what path of integration to take. II、 1. The sine law of the variation of light intensity

50、with the cylinder diameter has been emphasized. 2. Not only do temperature and light affect the conductivity, but the addition of impurities to semiconductors also makes it change greatly. 3. Various satellites are frequently launched to obtain information about/on space. 4. Our semicond

51、uctor industry came into being at the end of the 1950s. 5. My colleagues and I would like to express our thanks to Professor W. Smith for his great help. 練習8 I、 1. The amplifier amplifies the received signals. 2. Moving molecules have kinetic energy. 5. Fig.

52、 1 – 3 shows the photo of a freely falling body. 3. Speed equals distance divided by time. 4. Voltage equals/is equal to current multiplied by resistance. 5. The resistance of air increases with the increased/increasing/an increase in speed. 6. A transformer is a device consisting

53、of two or more coils wound on/round an iron core. 7. It is necessary to find out the current flowing through this component. 8. This book, properly used, will be of great help to the reader. 9. Flowing through a circuit, the current will lose part of its energy. 10. Given/Knowing time

54、 and speed, we/one can find out distance. 11. Having studied this chapter, the student will understand/will have understood the principle of a computer. 12. The speed of light being extremely great, we cannot measure it by ordinary methods. 13. Several comsats were launched, all of them (be

55、ing) high-altitude satellites. 14. Called “the mother of all networks,” the Internet is a widely used international network. 15. This force can be resolved into two components, one (being) horizontal and the other vertical. II、 1. Let us construct/draw a circle with the origin as the center

56、and of radius R. 2. This parameter should be measured with E grounded. 3. With no resistance in the circuit, the current will increase indefinitely. 4. With this in view, we have written this book. 5. This paper introduces a new design method/technique, with emphasis on its principl

57、e. III、 1. Let us consider designing a computer. 2. We refer to these components as being passive. 3. This involves taking the Fourier transform. 4. On/Upon rearranging the above equations, we obtain the following set of equations. 5. In using this equation, it does not matter which plane is

58、considered as 1. IV、 1. Given/Knowing resistance and current, one/we can determine/calculate voltage. 2. The price of this instrument is high. 3. A robot is a special kind of electronic device. 4. The current starts flowing at the very moment we close the circuit. 5. They h

59、ave been designing a new type of computer these six months. 練習9 I、 1. The problem was not solved until a completely different method was introduced. 2. Nearly 100 years passed before the existence/presence of subatomic particles was confirmed by experiment/exper

60、imentally. 3. The year this device was invented, World War II broke out. 4. Small as they are, atoms are made up of still smaller particles. 5. These two resistors should be selected/chosen so that the transistor can operate normally. 6. The body is in such a state that it can do wor

61、k. II、 1. The relation that voltage is the product of current and resistance applies to all the dc circuits. 2. The discovery that magnetism can produce current is extremely important in the field of electricity. 3. An equation is an algebraic statement that two algebraic expressions a

62、re equal. 4. There is evidence that no life exists on the moon. 5. The question now arises whether the algorithm is of practical use. 6. In this case there is no guarantee that the series is convergent. 7. There is a growing/increasing awareness that these techniques/methods are very

63、 useful. 8. One of/Among the most noteworthy achievements at that time was the realization that light consists of electromagnetic waves. 9. This is due to/is caused by/results from the fact that there are many free electrons in conductors. 10. Besides/In addition to the fact that the prop

64、erties of the material should be included in the analytical model, we must take other factors into account. III、 1. These features make it difficult for electronic counter-measure systems to intercept, analyze and jam this kind of signal. 2. The existence of and the ability to control these

65、phenomena make those devices possible. 3. The variation of/in the number of the filter’s teeth has a greater effect on the performance of its passband than the variation of/in its dimensions. 4. Scalar detection will result in the loss of some phase information. 5. Fig. 6 shows the sc

66、hematic diagram of measuring scatter parameters by the natural parameter transformation method. 練習10 I、 1. Now it remains to be determined when the series converges. 2. It is clear from Dubamel’s Theorem that this limit exists. 3. It follows from Maxwell’s hypothesis that whenever there is a change in an electric field, a magnetic field is produced. 4. It does not matter whether the magnet is moved in this case. 5. Temperature determines in