练习 1 (on page 8)
II. 将下列句子译成英语
1.Nonlinear distortion can be caused by too large an input signal.
输入信号太大会引起非线性失真（nonlinear distortion）。
https://www.doczj.com/doc/d98148650.html,ing the definition of slope, we can derive the equation which represents a straight line.
利用斜率（slope）的定义，我们能导出（derive）表示直线的方程。
3.The expression f(x + h) – f(x) is frequently used in the study of calculus.
f(x + h) – f(x)这一表达式（expression）经常用在微积分（calculus）方面。
4.An equation which can be written in the following form is known as a linear equation in one
unknown.
能写成以下形式的方程被称为含有一个未知数（unknown）的线性方程（linear equation）。
5.In a computer, the tendency is to operate at as high a clock rate as possible.
在计算机中，趋势是以尽可能高的时钟频率（clock rate）工作。
6.The voltage across this capacitor is a few hundredths of a volt.
该电容器（capacitor）上的电压（voltage）为零点零几伏（volt ）。
7.The output of the factory ten years ago was only one fifth what it is now [或：… only one
fifth its present output].
十年前该厂的产量（output）仅为现在的五分之一。
8.The difference between these two values is 13 parts in 104.
这两个数值之差（difference）为万分之十三。
9.Tin does not have as high a melting point as lead (does).
锡（tin）的熔点（melting point）没有铅（lead）高。（要求使用“have as…as”句型）
10.This average velocity is half the final velocity.
这个平均速度（average velocity）是末速度（final velocity）的一半。
11.It is necessary to find how long a time it takes [或：is required; is needed; is necessary] to solve
this equation.
必须弄清（find）解（solve）这个方程（equation）需要多长的时间。
12.This wire is four times thicker than that one.
这根导线（wire）比那根粗（thick）三倍。
13.Electricity can be easily changed into other forms of energy.
电（electricity）可以容易地被转变成其它形式的能量。
14.In 1831, Joseph Henry in the United States discovered the phenomenon of electromagnetic
induction.
1831年美国的约瑟夫·亨利（Joseph Henry）发现了电磁感应（electromagnetic induction）现象。
15.A receiver consists of several units [或：parts].
接收机（receiver）是由几个单元组成的。
III.. 改正下列句中的错误
1.The newly designed instrument is good in quality [或：… is of good quality].
原句：The new designed instrument is in good quality.
2.This engine needs to be cleaned [或：cleaning].
原句：This engine needs being cleaned.
3.This running machine will stop of itself in a minute or two [或：… in one or two minutes].
原句：This running machine will stop of itself in one minute or two
4.In this case, the input does not fall; the output does not fall, either. [或：…; neither [nor] does
the output.]
原句：In this case, the input does not fall; the output does not fall, too.
5.The resistance of a conductor depends not only on the material of which the conductor is made,
but also on the size and temperature of the conductor.
原句：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.
6.Another comsat was launched on the morning of the 8th of October.
原句：Another comsat has been launched in the morning of the 8th of October.
IV. 将下列内容译成英语
1.The period with which a body undergoes simple harmonic motion is the time required for it to
make one complete oscillation. In the case of a spring, the period is the time the spring spends in going from its maximum extension, through its maximum compression and back to its maximum extension once more. For all types of simple harmonic motion, the period T is given [或：expressed; denoted; represented] by
T=,
2
where the acceleration a is that experienced by the body when it is at its specified position.
物体（body）经受（undergo）简谐运动（simple harmonic motion）的周期（period）是为使它作一完整振荡（oscillation）所需的时间。对弹簧（spring）而言，周期就是弹簧在从其最大的伸长（extension），通过其最大的压缩（compression
过程中所用的时间。对各类简谐运动来说，周期T 表示为2
T=。式中加速度（acceleration）a是物体处于特定位置（specified position）的加速度。
2.××: male, professor, advisor for doctoral students, and academician of the Chinese Academy of
Sciences. He graduated from the Department of Radar at the Institute of the Communications Engineering of the People’s Liberation Army of China in 1953.
After graduation he remained at the Institute as a faculty member. He successively held the posts of head of a teaching and research section, chairman of a department, and vice president of the Institute. From 1984 to 1992 he served as president of Xidian University. He is currently chairman of the Academic Commission of Xidian University and chairman of the Academic Commission of the National Key Laboratory of Radar Signal Processing. He is also member of the Committee of the National Science Fund for Outstanding Youths, and fellow of the Chinese Institute of Electronics.
He has long been engaged in research and teaching in the fields of radar and information processing. In recent years, his research interests focus on statistical signal processing, array signal processing, and self-adaptive signal processing.
××：男，教授，博士生导师，中科院院士。1953年毕业于解放军通信工程学院雷达系。
毕业后留校任教，历任教研室主任、系主任、副院长。1984年至1992年任西安电子科技大学校长。现任校学术委员会主任，雷达信号处理国家重点实验室学术委员会主任。
他还是国家杰出青年科学基金委员会委员，中国电子学会会士。
他长期从事雷达与信号处理方面的研究和教学工作，近年来的研究方向：统计信号处理、阵列信号处理、自适应信号处理等。
………………………………………………………………………………………………………. .
练习 2 (on page 23)
II. 将下列句子译成英语
1.
这本书对电子工程师来说是极有帮助的。
2.Of the first four chapters, Chapter 3 is the most important.
在前四章中，第三章最重要。
3.This problem can be solved with great ease.
解这道题很容易。
4.In this case, current leads voltage by 90o.
在这种情况下，电流导前（lead）电压90o。
5.Through the analysis of the parameters of this device [或：By analyzing the parameters of
6.For x > 0, there is no solution to the equation.
若x > 0，则该方程无解。
7.
现在我们需要解这个方程，求出那个未知数（
8.Upon substitution of these values, it is found that v is equal to the velocity of light.
在把这些值代入（substitution）后，人们发现v就等于光速。
9.Capacitance is measured in farads.
电容（Capacitance）是用法拉（farad）为单位来度量的。
10.This computer is very small in size.
这台计算机的体积很小
11.These waves travel only in one direction.
这些波只朝一个方向传播。
12.In their study of electricity, physicists defined electric field intensity.
在研究电学时，物理学家们定义了电场强度（electric field intensity）。
13.This answer appears correct.
这个答案看起来是正确的。
14.This coefficient remains to be determined.
这个系数（coefficient）有待确定。
15.The two equations below will be used often in later chapters.
下面这两个式子在后面章节将被经常用到。
16.Here we use two metal balls two meters apart.
这里我们使用相距两米的两个金属球。
17.This paper contains nothing new. [或：There is nothing new in this paper.]
本文没有什么新内容。
18.The force acts perpendicular to the surface of the table.
该力垂直于桌面作用。
19.This rule can be used for [或：… can apply to] all integers, both positive and negative.
这一规则可用于一切整数（integer），包括正的和负的。
20.A neutron has a slightly larger mass than a proton. [或：… has a mass slightly larger than that
of a proton.]
中子（neutron）具有稍（slightly）大于质子（proton）的质量（mass）。
21.Electrons are the smallest particles present in ordinary matter. [或：… particles that exist in
ordinary matter.]
电子（Electron）是存在于普通物质（ordinary matter）中的最小微粒（particle）。
22.
23.Accurate in operation and high in speed [或：In view of their accurate operation and high
speed], computers have found wide applications.
计算机由于运算（operation）准确（accurate）、速度快而得到了广泛的应用。
24.Medium-size computers now perform as large computers not long ago [或：of near past] did.
现在的中型（Medium-size）计算机的运算能力（perform）与不久前的大型计算机一样。
25.The input voltage goes negative and the energy stays constant.
输入电压（input voltage）变为负值而能量则保持不变。
26.These rays seem to come from the image.
这些射线（rays）似乎来自于成像（image）。
27.Impedance in an a-c circuit plays the same role that resistance does in a d-c circuit.
交流电路（a-c circuit）中的阻抗（Impedance）起着与电阻（resistance）在直流电路中相
同的作用。
28.Two parallel wires a distance (of)δapart carry the current i.
相距一段距离δ的两根平行（parallel）导线载有（carry）电流i。
29.The equations here are of great importance.
这里的这些式子（equation）很重要。
30.We shall use a cable 10 meters long.
我们将使用一根10米（meter）长的电缆（cable）。
III.. 改正下列句中的错误
1.That professor is much [或：very] interested in this topic.
2.These multimeters are much alike in size and weight.
3.This voltage can hardly be measured.
4.In this laboratory, this instrument is better than any other one [或：… than any one else].
5.To repair the machine, the serviceman has to remove the cover. [或：Before the machine can
be repaired, the cover has to be removed.]
6.The preface to this book is well written.
IV. 将下列内容译成英语
1.The primary winding of a transformer is the coil which is fed with an alternating current, and
[或：while] the secondary winding is the coil to which power is transferred via the changing flux. The designations of the primary and the secondary depends only on how the transformer is connected; either winding may be the primary, and the other is then the secondary.
变压器（transformer）的初级绕组（primary winding）是馈有（fee d ….with…）交变电流（alternating current）的线圈（coil），而次级（secondary）绕组是通过（via）变化的（changing）磁通（magnetic flux）传给有（transfer）功率的线圈。初级和次级的名称（designation）只取决于变压器连接的方式；任一个绕组均可是初级，于是另一个就是次级了。
2.×××: male and born in Funing County, Jiangsu Province in 1962. He graduated from Xidian
University and earned the B. Eng. Degree, the M. Eng. Degree, and the Ph. D. degree in 1982, 1985, and 1990 respectively. In 1994 he was exceptionally promoted to professor. Presently he holds the posts of dean of the School of Telecommunications Engineering of Xidian University and director of the Research Institute of Information Science. He is an advisor for doctoral students, a fellow of the Chinese Institute of Communications, a senior member of IEEE, and a
senior member of the Chinese Institute of Electronics. He was granted the title of “Expert with Distinguished Achievements” of both Shaanxi Province and the Ministry of Electro nics Industry. He is a recipient of the Government Special Subsidy.
He is engaged in the research in the fields of mobile communication, personal communication, and so on. He has obtained one “National Invention” patent and won quite a few Science and Technology Progress Awards at provincial and ministerial levels.
×××，男，1962年生于江苏省阜宁县。1982年毕业于西安电子科技大学，获工学学士学位，1985年在该校获工学硕士学位，1990年在该校获博士学位。1994年被破格晋升为教授。现任西安电子科技大学通讯工程学院院长和信息科学研究所所长，博士生导师，中国通信学会会士、IEEE高级会员、中国电子学会高级会员。陕西省和电子部有突出贡献的专家。享受国家政府特殊津贴。从事移动通信、个人通信等等方面的研究。获国家发明专利一项；获省部级科技进步奖多项。
……………………………………………………………………………………………………练习 3 (on page 31)
II. 将下列句子译成英语
1.
2. The black hole is invisible, but its presence can be deduced.
黑洞（black hole）是看不见的，但它的存在是可以推断（deduce）出来的。
3. Electromagnetic waves travel at the speed of light, and require no material for their passage.
电磁波（electromagnetic waves）以光速传播，为其通行（passage）不需要任何物质。
4. From its definition as the ratio of distance to time, speed is expressed in meters per second.
从把它定义为距离与时间之比，速度是以米每秒来表示的。
5. Their difference in this case is 13 parts in a million [或：per million; in 106].
它们在这种情况下的差别为百万分之十三。
6. Our analysis of the diode will be of great significance.
我们对二极管的分析将是很有意义的。
7. This facilitates their use in circuit analysis.
这有助于（facilitate）把它们用在电路分析中。
8. The success in design depends on our correct choice of the circuit.
设计的成功与否取决于我们对电路的正确选择。
9. It is necessary to take into account their collisions with each other.
必须把它们相互间的碰撞考虑进去。
10.
11. This law holds (true) for [或：applies to] the bodies the speed of a rocket.
这一定律适用于具有火箭速度的物体。
12. We must frequency modulate the carrier.
我们必须对载波（carrier）进行频率（frequency）调制（modulate）。
13.This device is radio controlled.
这个设备是无线电控制的。
14.
15.To solve this problem, we must take everything into account, a complicated procedure.
为了解（solve）这道题（problem），我们必须将各种因素考虑进去，这一步骤（procedure）是复杂的（complicated）。
16.An instrument for measuring current, voltage and resistance, the multimeter is widely
used in the work having connection with electricity.
万用表是测量电流、电压、电阻的仪表（instrument），它广泛地应用在与电有关的（have
connection with）的工作中。
17.This paper deals with advantages of AC over DC.
本文论述了交流电与直流电相比的优点。
18.The answers to these problems appear in the back of the book.
这些题的答案（answer）在书的后面。
19.This curve shows the fall in[或：of] conductivity with increasing [或：increased]
temperature.
该曲线（curve）显示了导电率（conductivity）随温度的增加而下降的情况。
20.These materials are pressure sensitive.
这些材料是压敏的。
III. 改正下列句中的错误
1.The features of this device are small size and light weight.
原句：The feature of this device is small in size and light in weigh.
2.Other types of electric motor are also widely used in industry.
原句：Other types of the electric motor is also widely used in industry.
3.No students [或：None of the students] can solve this special kind of equation.
原句：Any student cannot solve this kind of special equation.
4.Not until the invention of the microscope did the real study of bacteria become possible.
原句：Until the invention of the microscope the real study of bacteria became possible.
5.They do not know if this material could stand so large a force [或：… whether this material
could stand so large a force or not].
原句：They do not know if this material could stand a so large force or not.
6.The machine will automatically start to operate again in two hours.
原句：The machine will automatically start to operate again two hours later.
IV. 将下列内容译成英语
1.The second law of motion provides a method for measuring what is called the “inertial mass” of
a body. All one needs to do is [OR: All that is necessary is; One only needs] to apply the same
force in turn to a standard of mass and to an unknown mass and then to compare their accelerations, something that [OR: …, which] can be done anywhere in the universe with t he same results. No matter where we are, we can always tell a wooden ball from a lead ball of the same size by throwing them.
第二运动定律（the second law of motion）提供了度量人们所说的物体的“惯性质量”
（“inertial mass” of a body）的一种方法。人们只需要把同样的力依次（in turn）加到一个质量标准上和一个未知质量上，然后比较它们的加速度（acceleration），这可以在宇宙中任何地方进行而获得相同的结果。不论我们在什么地方，我们总能够通过投掷（throw）来区分开一个木质球（wooden ball）和一个同样大小的铅球（lead ball）。
2.×××，male, born in 1938, professor, and advisor for doctoral students. He graduated from
the Xi’an Military Telecommunications Engineering Institute in 1964 and remained there as a faculty member. He has long been engaged in the teaching and research in the field of radar.
Through close cooperation with quite a few radar research institutes and enterprises, he has successively undertaken or taken charge of more than twenty national defence key preliminary
research projects and engineering projects with many practical achievements, most of which have been popularized and applied, or used to equip the armed forces, thus making contributions to the development of radar technology in China.
×××，男，1938年生，教授，博导。1964年毕业于西安军事电讯工程学院，并留校任教。长期从事雷达领域内的教学和科研工作。他与多家雷达研究所和企业密切配合，先后承担和主持了二十余项国家重点预研和工程项目，取得多项实用性成果，多数成果已推广应用或装备部队，对促进我国雷达事业的发展作出了贡献。
…………………………………………………………………………………………………
练习 4 (on page 39)
II. 将下列句子译成英语
1.This equipment, it is said, was commercially available three years ago. [OR: It is said that ….;
This equipment is said to have been commercially available three years ago.]
这种设备据说在三年前就有卖（commercially available）的了。
2.h fe is a parameter which we think is very important.
h fe是一个我们认为很重要的参数（parameter）。
3.Now we connect a conductor charged with, let us say, positive electricity, to the ground.
现在我们把带有比如说带正电的一个导体接地（connect…. to the ground）。
, it was agreed, should be replaceable by –1 at will.
at will）用—1来替代。
5.Velocity, we have noted before, is a vector quantity.
我们在前面已注意到，速度（Velocity）是个矢量（a vector quantity）。
6.None of these windows can withstand so large a force.
这些窗户均称受（withstand）不了这么（so）大的力。
7.All the computers in our laboratory are not very good in quality.
我们实验室里的计算机的质量并非都很好。
8.No textbooks available [OR: None of the textbooks available] have mentioned this point.
现有的教科书都没有提到这一点。
9.Students are familiar with none of these parameters. [OR: No students are familiar with these
parameters.]
学生们对这些参数都不熟悉。
10.In this shop all these components are not available.
在这个商店里，这些元件并非都有卖。
11.As early as the 1820s, it had been realized that this metal could/can be used in industry.
早在19世纪20年代，人就认识到这种金属可用在工业上。
12.They have been developing a special kind of robot since 1998.
自从1998年以来，他们一直在研制一种特殊的机器人（robot）。
13.Full use must be made
full use of.] （要求使用make use of）
14.It is expected that, by the time the device arrives at that research institute, the technical personnel
there will have studied its principle of operation.
预计到这设备运抵（arrive at）该研究所（research institute）时，那里的技术人员（technical personnel）对其工作原理（principle of operation）已学过了。
15.Attention must be paid to the polarities of this battery. [OR: The polarities of this battery must
be paid attention to.]
这种电池（battery）的极性（polarity）必须加以注意。
16.Sound travels much more rapidly in hydrogen than in air.
声音在氢气（hydrogen）中传播（travel）要比在空气中快得多。
17.Some developed countries use as much as 60 kilograms of paper for each person in a year.
有些发达国家（developed country）每人一年中使用多达60公斤（kilogram）的纸。
18.The darker the color, the more heat is/will be absorbed.
颜色（color）越深（dark），吸收（absorb）的光就越多。
19.The greater the resistance of a wire, the more energy will be dissipated in it.
导线的电阻越大，在导线中消耗（dissipate）的电能就越多。
20.Of all this one is most commonly used.
在所有这些仪表中，这台最常（commonly）用。
21.This astronomical observatory is the largest in our country.
这个天文台（astronomical observatory）属我国最大。
III. 改正下列句中的错误
1.This experiment begins at eight o’clock/in May/tomorrow.
2.The voltage across the resistor is measured in volts.
3.Both the engineers are busy (in) designing a new type of computer. [OR: … busy with the
design of….]
4.Copper is a kind of matter and so is air.
5.We find this concept very difficult to explain.
6.They will leave for Beijing to attend an international conference on communications.
IV. 将下列内容译成英语
1.When a wire loop surrounds a stationary magnet, no current flows in the loop. What Faraday
and Henry discovered was that moving the magnet causes a current to flow in the loop. It does not matter whether the magnet or the loop is actually being moved; the origin of the current lies in the relative motion between a conductor and a magnetic field.
当导线环（wire loop）环绕静止的磁铁时，在环中没有电流流动。法拉第（Faraday）和亨利（Henry）所发现的是：使磁铁运动能引起电流在环中流动。磁铁或环是否实际上在被运动是没有关系的。电流的起源在于导体和磁场之间的相对运动（relative motion）。
2. A lever is a rigid rod pivoted at a certain point called the fulcrum. Fig. 12-1 shows the most
familiar type of lever, with a load at one end being balanced by an applied force at the other.
The condition for equilibrium is that the torques produced by F in and F out be the same in magnitude.
杠杆（lever）是支（pivot）在称为支点（fulcrum）的某一点上的一根刚性（rigid）棒。
图12-1画出了人们最熟悉的一类杠杆，处于一端的负载（load）被处在另一段的外力（applied force）所平衡（balance）。平衡（equilibrium）的条件是由F in 和F out产生的力矩（torque）大小相等。
3.×××: male and born in December 1941. He graduated from the Xi’an Military
Telecommunications Engineering Institute (the predecessor of Xidian University) and remained at the institute as a faculty member. From 1981 to 1983 he stayed at the University of Pennsylvania, U.S.A. for further studies, engaged in the research on image analysis & processing and radar imaging. From 1989 to 1990 he went to the United States and Britain successively as a visiting scholar. Currently he serves as president of Shenzhen University, being an advisor for doctoral students of Xidian University in the academic area of signal and information processing. He has been in charge of and undertaken quite a few projects, all with high-level achievements.
×××:男，1941年12月生。1965年毕业于西安军事电讯工程学院（西安电子科技大
学的前身），毕业后留校任教。1981～1983年在美国宾州大学进修，从事图像分析与
处理和雷达成像方面的研究工作。1989～1990年在美国和英国访问交流。现任深圳大
学校长，西安电子科技大学信息和信号处理学科博士生导师。他主持和承担了多项课
题，均获得高水平的成果。
………………………………………………………………………………………………
….
练习 5 (on page 43)
II. 将下列句子译成英语（要求使用动词不定式）
1.It is quite possible for us to solve this equation.
我们完全能够解这个方程。
2.It takes only a few months to design a new type of airplane with the help of a computer.
借助于计算机设计一种新型的飞机只需几个月的时间。
3.
4.It is left as a problem to the reader to show that this formula holds.
证明这个公式（formula）成立（hold）就留作为读者（reader）的一个习题。
5.The program to be executed is stored in this unit.
要执行（execute）的程序贮存（store）在这一单元中。
6.This valley is used as the foundation on which to build the dam.
这山谷（valley）用作为建坝（dam）的基础（foundation）。
7.There are many types of multimeters to choose from.
有许多种类型的万用表（multimeter）可供选用（choose from）。
8.The velocity of light is too great to be measured in/with simple units.
光速太快了以致于我们不能用简单的单位来测量。
9.Let it be required to find out this angle.
假设（let）需要求出这个角度（angle）来。
10.Let t o be equal to zero.
设（let）t o等于零（zero）。
11.This equation is very difficult to solve.
这个方程很难解。
12.The farther away the target (is), the longer it takes for the echo to return.
目标（target）越远，回波（echo）返回（return）所需的时间就越长。
13.We find this problem easy to solve.
我们发现这道题容易解。
14.For this series to converge, x must be less than 1.
为使这个级数（series）收敛（converge），x必须小于1.
15.
factor)的影响。
16.This is a pen to draw pictures with.
这是一枝画（draw）画（picture）的笔（pen）。
17.For Q2 to conduct, its base must be about 1.8 volts.
为使Q2导通（conduct），其基极（base）必须是大约1.8伏（volt）。
18.
III. 改正下列句中的错误
1.Substituting Eq. (7) in/into Eq. (8), we obtain/have/get a=b. [或：Substitution of Eq. (7)
into/in Eq. (8) gives/yields/results in a=b.
原句：When Eq. (7) is substituted in Eq. (8), a=b.
2.Sound travels less fast than light does.
原句：Sound travels much less faste r than light is.
3.Every one/Each of the methods has its advantages and disadvantages.
原句：Every of methods has their advantages and disadvantages.
4. Work equals/is equal to force multiplied by distance [或：Work equals force times distance.
或：Work is the product of force and distance.]
原句：Work equals to force multiplying distance.
5. Usually we can not see the earth’s shadow, because there is nothing for it to fall on.
原句：Usually we can not see earth’s shadow, because there is nothing for it to fall.
7.This equipment has quite a few advantages all its own.
原句：This equipment has quite a few advantage all it’s own.
IV. 根据所给的中文句子，改正英语句子中的错误
1.This new method has the advantages of high efficiency and easy adjustment.
原题：这种新方法具有效率高、容易调整的优点。
This kind of new method have the advantage of high efficiency ，easy adjustment
2.The sine law of the variation of the light intensity with the cylinder diameter has been
emphasized.
原题：强调指出了光强随圆柱体直径变化的正弦规律。
The sine law of the variance of the light intensity brought due to the variance of the
cylinder diamond has been pointed out emphatically.
3.Our method is different from those described/presented in the papers available
on/discussing the same problem.
原题：我们的方法与以前讨论同一个问题的文章中所述的不同。
Our method is different from previous articles discussed the same problem.
V. 将下面的内容译成英语
Xidian University is a national key institution of higher learning/education which integrates engineering, science, liberal arts and management, with information and electronics as the dominant academic areas. It is located in the ancient cultural city of Xi’an and occupies an area of 60 hectares with a beautiful environment on the campus. It has established nine schools and one college, i.e., School of Telecommunications Engineering, School of Economy and Management, School of Electronic Engineering, School of Computer Science and Technology, School of Mechano-Electronic Engineering, Adult Education College, etc. There are 17 departments with/covering over 60 specialties for undergraduates and junior-college/three-year-program students. The University has the right to examine and approve professorship and qualifications for doctoral advisers. It has set up about 34 academic areas for master’s degrees and 14 academic areas for doctoral degrees, of which there are 3 national key areas (i.e., “communication and electronic system”, “signal and information processing”, and “circuit and system”) and 11 ministerial-level key areas.
西安电子科技大学是以信息和电子学科为主，工、理、文、管多学科结合的全国重点高等学校，位于文化古城西安市，占地60公顷，校园环境优美。学校建有通信工程、经济管理、电子工程、计算机、电子机械、成人教育等10个学院。设有17个系60多个本专科专业。学校具有审定教授任职资格授予权和博士生导师审定权。学校具有审定教授任职资格授予权和博士生
导师审定权。学校设有近34个硕士学科点，14个博士学科点；“通信与电子系统”、“信号与信息处理”、“电路与系统”等3个学科点为国家级重点学科，有11个部级重点学科。……………………………………………………………………………………………………….
练习 6 (on page 49)
II. 将下列句子译成英语
1．变压器是由绕在铁芯上的一个或多个线圈构成的一种装置。
A transformer is a device consisting of two or more coils wound on the iron core.
2. 这本书如果使用恰当，对读者是很有帮助的。
The magnetic lines of force representing the magnetic field are concentric circles surrounding
In this case, electrons will possess greater energy [或：the energy electrons possess will be greater], (thus) increasing the brightness of the spot.
5.当阳光照在光电池上时，该设备就会自动工作起来。
Given/Knowing time and speed, we can find out distance.
7.所有这些网络都具有能转换阻抗值的性质。
All these networks have the property of being able to transform impedance levels.
8.酶能提高化学反应的速度而本身不会被改变。
Enzymes increase the speed of chemical reactions without being changed themselves.
9.通过找到该直线上的任何两点，我们就能把这直线画出来。
By finding two points on the straight line, we can draw the line.
10.求出这些符号的可能值就称为解方程。
is called solving the equation.
Automation is not a question of machines replacing man.
12在设计这些集成电路时只考虑一两种用途。.
These integrated circuits were designed with one or two uses in mind.
13.让我们以原点为圆心做一个半径R为的圆。
14
The equation to the circle with the center at the origin and of radius a is x2 + y2 = a2.
15.若以其他门电路作为负载，则输出电压近似为3.5伏。
With other gates as loads, the output voltage will be approximately 3.5 volts.
16.在u =2公里/秒和v =11.2 公里/秒的情况下，m0/m1 = 270.
With u =2 km/sec and v =11.2 km/sec, m0/m1 = 270.
III. 改正下列句中的错误
1.By observing the effect of a new drug on the patients, one/we can see its therapeutic effect.
2.Iron is almost as good a conductor as aluminium.
3.It is easy for us to determine the weight of the body.
4.Friction makes the work put into a machine greater than the useful work accomplished by it.
5.On being heated, the air in the bottle will expand.
6.Many of the principles of a receiver also apply to a transmitter.
IV. 根据所给的中文句子，改正英语句子中的错误
1.Only through the study of [OR: Only by studying] the performance of the system, can one/we
appreciate/understand its advantages.
只有通过对该系统性能的研究我们才能了解它的优点
2.If the self-bias circuit is of poor design[OR: is not designed well/properly], chopping
oscillations will take place in the LC oscillator.
若自偏电路设计不当，LC振荡器会出现间歇振荡
3.This paper presents a CAD method for increasing the printing speed and improving the
printing quality.
本文对提高打印速度和印字质量提供了一种机辅设计手段。
V. 将下面的内容译成英语
Currently the University has 12853 students of various types, of whom there are 7658 undergraduates and about 900 graduate students. In more than 60 years since its founding, it has produced over 60000 graduates of various types who work in the fields of national defence, electronics,
posts and telecommunications, aerospace and aviation in China, achieving splendid results in the nation’s economic construction.
The University enjoys a well-qualified, high academic level, and reasonably structured contingent of teachers. There is now a teaching and administrative staff of over 3200, of whom there are more than 2100 technical professionals, with 1 academician of the Chinese Academy of Sciences, 26 national or provincial & ministerial-level experts who have made outstanding contributions, and over 600 teachers with senior academic titles.
学校先有各类在校学生12853人，其中本科生7658人，研究生近900人。建校60多年来，已培养各类毕业生60000多名，遍及我国国防、电子、邮电、航天、航空等领域，为我国的经济建设做出了突出的成绩。
学校拥有一支业务素质好、学术水平高、结构合理的师资队伍。现有教职工3200多人，其中专业技术人员2100多人，中科院院士1人，国家、省部级有突出贡献专家26人，高级职务教师600多人。……………………………………………………………………………………………………
练习7 (on page 54)
II. 将下列句子译成英语
1.Heat rays are emitted by all (material) bodies no matter how low their temperatures are.
一切物体不论其温度有多低，均发射（emit）热射线（heat rays）。
2.Small as they are, atoms are made up of still smaller units.
尽管（as）原子（atom）很小，它们是由更小的单元（unit）构成的。
3.The measurement of angles is unique in that the unit is dimensionless.
角的测量是独特的（unique），在于单位是无量纲的（dimensionless）。
4.The body is in such a state that it can do work.
该物体（body）处于这样的状态（state）以致于它能成功。
5.These double-angle formulas can be used any time we have expressed one angle as twice
another.
每当（any time）我们把一个角表示成另一个角的两倍时，就使用这些倍角（double-angle）公式（formule）。
6.The problem was not to be solved until a radically new and different concept was
introduced.
直到引入（introduce）了一种崭新的（radically new）不同概念后这个问题才得到了解决。7.
8.Every substance, be it [或：whether it be] a solid, a liquid, or a gas, consists of atoms.
每种物质（substance）不论是固体、液体还是气体，均是有原子构成的。
9.There are various indications [或：All indications are] that the price of computers will
continue to fall.
所有的迹象（indication）表明，计算机的价格（price）将进一步下跌。
10.There is no evidence that energy can be created or destroyed.
没有证据表明能量能被产生（create）或被消灭（destroy）。
11.In this case there is no assurance that the circuit is tuned to that frequency.
在这种情况下并不保证（assurance）该电路就调谐（tune）于那个频率（frequency）上。
12.These experiments lead to the result that with/for a constant force, the acceleration is
inversely proportional to the mass.
这些实验得出（lead to）了这样的结果：若外力不变，加速度（acceleration）与质量（mass）成反比（be inversely proportional to）。
13.The idea that everything is made up of very small particles was known to the Greeks over
two thousand years ago.
两千多年前希腊人（the Greeks）就知道了每样东西都是有很小的颗粒（particle）构成的这一概念（idea）。
14.Since then, there have been speculations whether life exists on other planets.
自从那时以来，一直有着在其它行星（planet）上是否存在生命（life）的各种推测（speculation）。
15.This is due to/results from/arises from/is caused by the fact that there exists capacitance in
the circuit.
这是由于（due to）在电路中存在电容（capacitance）的原因导致的。
16.Besides the fact that the properties of the material should be included in the analytical
model, we must take other factors into account.
除了材料的性质应该包括在分析模型之中外，我们还必须把其它因素考虑进去。
17.The term follower comes from the fact that the output voltage follows the signal voltage
quite closely.
“跟随器”（follower）这个术语来自于这么一点：输出电压十分紧密地跟随着信号电压。
https://www.doczj.com/doc/d98148650.html,ing the fact that the curve passes through (2, 1), we can evaluate the constant.
利用该曲线通过（2，1）这一情况，我们可以求出这个常数来。
19.The usefulness of the Karnaugh map lies in the fact that adjacent cells can be grouped
visually to eliminate redundant variables.
卡诺图（the Karnaugh map）的有用性（usefulness）在于相邻的方格（adjacent cell）能够看得见地（visually）加以组合起来（group）来消除（eliminate）多余的（redundant）变量。
20.This series of experiments leads to the result that with a constant force, the acceleration is
inversely proportional to the mass.
这一系列的实验得出了这样的结果：若外力恒定，则加速度（acceleration）与质量成反比，III. 改正下列句中的错误
1.Air exerts pressure in every direction.
原句：Air exerts the pressure toward every direction.
2.The hotter the body (is), the more energy it radiates.
原句：The hoter the body will be，the more it radiates energy.
3.This is the largest aircraft that has ever been manufactured in China.
原句：This is the largest aircraft which was ever manufactured in China.
4.Semiconductors will be discussed in Chapter 2.
原句：Semiconductor will be discussed in the Chapter 2.
5.The ability of some elements to give off radiations is referred to as radioactivity.
原句：The ability for some elements to give off radiations is referred as the radioactivity.
6.To do all this, a sound knowledge of computer science is necessary.（is required）
原句：To do all these，sound knowledge of computer science is necessary.
IV. 根据给出的中文句子，改正英语句中的错误
1.The mathematical description of and the full-compensation conditions for the 3-axis
steady-tracking principle are also given.
同时给出了三轴稳定跟踪原理的数学描述及全补偿条件。
The mathematical description and the full-compensation conditions of the 3-axes