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西电2008秋季考博英语

西电2008秋季考博英语
西电2008秋季考博英语

10级汽车专业英语试卷A

湖北科技职业学院10级汽车英语期末考试———————————————————————————————————— 一、单词互译(每空1 分,共20 分) Section A Directions: This section is to test how many words you know.Please translate english into chinese.(1*10) 1.Vehicle body 2.brake system 3.steering system 4.dash board 5.camshaft 6.Automatic Transmission 7.inlet valve 8.timing belt 9.cylinder 10.electronic controller Section B Directions: This section is to test how many words you know.Please translate chinese into english .(1*10) 1. 底盘2后悬架 3.转向盘 4 发动机 5 分电器6油底壳 7 活塞8 轴承 9手动变速器10冷却系统 二、阅读与理解(20题,每题2分,共40分) Part 1 The engine is the source of power that makes the wheels go around and the car move. The automobile engine is an internal combustion engine because the fuel (gasoline) is burned inside it. The burning of gasoline inside the engine produces high pressure in the engine combustion chamber .This high pressure forces piston to move, the movement is carried by connecting rods to the engine crankshaft. The crankshaft is thus made to rotate: the rotary motion is carried through the power train to the car wheels so that they rotate and the car moves. What do we see from the first paragraphs? ( ) The engine is source of power for a car. The engine can not make wheels go around. The engine is resource of oil. Which one Statement is true according the above first paragraph? ( ) The automobile engine is an international combustion engine. The automobile engine is an external combustion engine. The automobile engine is an inner combustion engine What do we see from the second paragraphs? ( ) High pressure is source of power inside a engine. Crankshaft is rotated without any force. Combustion chamber is not a part of the engine. Which one Statement is true according the above second paragraph? ( ) The movement of piston is carried by connecting rods to the engine crankshaft.

西安电子科技大学专业英语阅读试卷

1这个设备消耗(consume)的能量比那个少得多。 (使用“设备”做主语的主谓宾结构)This device consumes much less energy than that one. 2这条曲线画出了该电路的电流随外加电压的变化情况。(名词短语) The curve draws the variation of the current in the circuit with the applied voltage. 3空气吸收水蒸气(water vapor)的能力随空气温度的上升而提高。(不定式) The ability of air to absorb water vapor enhances with the rise of air temperature. 4本文介绍了一种新的测温方法,重点放在其基本原理上。(with结构) This paper introduces a new method of measuring temperature, w ith emphasis on its basic principle. 5频率被定义为某事发生的速率。(定语从句) By frequency is meant the rate that something happens. 6物体越热,其辐射(radiate) 的能量就越多,这一理论极为重要。(同位语从句)The hotter the object, the more energy it radiates, an important theory. 7英特网( Internet) 被叫做“一切网络之母”,它是连接200多个国家的一个国际网。(分词短语) Called "the mother of all networks", the Internet is an international network connecting to more than 200 countries. 8 在使用这个公式时,把哪一个平面(plane)看成1是没有关系的。(动名词短语) In using this equation, it does not matter which plane is considered as 1. 9 实际方向与假设的方向相反。(what从句) This direction is opposite to what has been assumed. 10 由于计算机运算精确、速度快,所以能为人类节省大量时间和劳力。(形容词短语)Accurate in operation and high in speed, computers are able to save a lot of time and human labor. Ⅱ 因特网的一个重要应用是计算机用户间利用电子函件相互通信。电子函件使用户可以用电子手段传递和接收消息、文本和数据。电子函件的功能非常类似于邮箱:无论接收者是否在网络上,用户都可以向他发送消息,该消息被保存起来,同时向接收者发送一个信号表明有一个消息在等待处理。电子函件传送消息已经

专业英语四级考试试题及答案_0

专业英语四级考试试题及答案 2005年英语专业四级考试试题 TEST FOR ENGLISH MAJORSTEST FOR ENGLISH MAJORS (2005) -GRADE FOUR- TIME LIMIT: 130 MIN PART IDICTATION [15 MIN ] Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passagewill be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be read at normal speed again and during thistime you should check your work. You will then be given 2 minutes to check through your work once more. Please write the whole passage on ANSWER SHEET ONE. PART IILISTENING COMPREHENSION [15 MIN] In Sections A, B and C you will hear everything once only. Listen carefully and then answer the questions that follow. Mark the correct answer to each question on your answer sheet. SECTIONA CONVERSATIONS In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.

电气专业英语名词

(coaxial) cable (同轴)电缆 AC transmission system 交流输电系统active load (PLoad)有功负载active loss有功损耗 active power 有功功率 ammeter电流表 anode (cathode) 阳极(阴极) arc discharge 电弧放电 armature 电枢 control控制 autotransformer 自耦变压器Shutdown 断电、停电 breakdown (电)击穿 breaker (circuit breaker) 断路器brush 电刷 brushless DC motor无刷直流电机bus bar (bus) 母线 calibrate 校准 capacitor bank 电容器组 conductor 导线 copper loss 铜损 corona 电晕 CT 电流互感器 dielectric constant 介质常数dielectric loss 介质损耗 direct current (DC)直流电discharge/charge 放电/充电disconnector 隔离开关 double-circuit lines on the same tower双回同杆并架double-column transformer双绕组变压器 earth(ground) wire 接地线 earthing switch 接地开关 eddy current 涡流 electric field 电场 electrical circuit 电路 electrical machine control控制电机 electrical machinery电机 electromagnetic field 电磁场 excitation励磁 exciting winding 激磁绕组 excitor 励磁机 extra-high voltage (EHV) 超高压 fault clearing time 故障切除时间 feeder 馈线 flashover 闪络 (fossil-fired) power plant 火电厂 fuse 保险丝,熔丝 (GIS)气体绝缘变电站 generator terminal机端 generator 发电机 grounding 接地 high voltage高压 high-voltage engineering 高电压工程 impedance阻抗

西安电子科技大学研究生专业英语阅读2013参考答案

西安电子科技大学 研究生课程考试试题 考试科目: 研究生专业英语阅读课程代码:0821004 考试日期:2013年11月 3 日考试时间:120 分钟 参考答案 Part one: 1.Energy is defined as the ability of a body to do work. 2.This device is more complicated than that one in structure. 3.The increase of greenhouse gas levels can lead to global temperatures’rise, a phenomenon known as global warming. 4. A capacitor is a device consisting of two conductors separated by a nonconductor. 5.No forming a new substance of any changes among them is a physical change. 6.F(x) represents the distance the object is from the lens. 7.This chapter of content is focused on. 8.If the quality remains unchanged, the acceleration is proportional to the force. 9.There is no doubt that speed is expressed in meters per second. 10.Part of energy wasted with the existence of friction. Part two: Part three: 1. The sparse ratio of th e resulting impedance matrix is as high as 40%. 2. As early as 1820s, it had been realized that this metal could be used in industry. 3. Now let us see the performance of the proposed algorithm compared with the algorithms in the literature [3] 4. No values of x can satisfy this equation. 5. Let us assume that there are 10 free electrons per cubic meter in the wire, and there is 10A current in the wire. 6. This device is characterized by easy operation and low price. 7. It is easy for us to determine the weight of the body. 8. We propose a numerical method based on Newton’s iterative method. 9. Only when these signals are sent to the same layer, can the process mentioned above occur. 10. The model is suitable for the design of and the research on SiC devices and circuits. Part Ⅳ

陕西科技大学电气专业英语试卷

Exercise 2 一、阅读理解(20points ): Passage one The circuit element used to model the current-resisting behavior of a material is the ① . It is the simplest ② element. George Simon Ohm is credited with formulating the ③ relationship for a resistor based on experiments performed in 1826. This relationship is known as Ohm's Law. Ohm's Law states that the voltage across a resistor is ④ the current flowing through the resistor. The constant of proportionality is the resistance value of the resistor in ohms. The circuit symbol for the resistor is shown in Fig.1. For the current and voltage shown, Ohm's Law is u(t) = Ri(t) (1) where R≥0 is the resistance in ohms. Since R is constant, Eq.(1) is the equation of a straight line. For this reason, the resistor is called a linear resistor. A graph of u(t) versus i(t) for a linear resistor is a line passing through the origin with a slope of R. Resistors whose resistances do not remain constant for different terminal current are known as ⑤ resistors. For such a resistor, the resistance is a function of the current flowing in the device. In reality, all practical resistors are nonlinear because the electrical characteristics of all conductors are affected by environmental factors such as temperature. Many materials, however, closely approximate an ideal linear resistor over a desired operating region. Choose the best answer into the blanks. 1 A. capacitor B. inductor u (t ) i (t ) + _ Fig.1

完形填空专项-英语专业四级考试模拟试卷(10套)-祖国霞

Model Test 1 Part III Cloze [15 MIN.] Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on your answer sheet. Geography is the study of the relationship between people and the land. Geographers compare and contrast __1__ places on the earth. But they also __2__beyond the individual places and consider the earth as a __3__. The word geography __4__from two Greek words: ge,the Greek word for "earth" and graphic, __5__means "to write". The English word __6__ means "to describe the earth". Some geography books focus __7__a small area __8__ a town or city. Others deal with a state, a region, a nation, or an __9__continent. Many geography books deal __10__the whole earth. Another __11__to divide the study of geography is to __12__between physical geography and cultural geography. The former focuses on the natural world; the __13__starts with human beings and __14__how human beings and their environment act __15__each other. But when geography is considered as a single subject, __16__branch can neglect the other. A geographer might be described as one who observes, records, and explains the __17__between places. If all places __18__alike, there would be little need for geographers. We know, however, __19__no two places are exactly the same. Geography, __20__, is a point of view, a special way of looking at places. 1. [A] similar [B] various [C] distant [D] famous 2. [A] pass [B] reach [C] go [D] set 3. [A] total [B] unit [C] part [D] whole 4. [A] falls [B] removes [C] results [D] comes 5. [A] what [B] that [C] which [D] it 6. [A] ge [B]graphy [C]geography [D]graphic 7. [A] to [B] up [C]above [D]on 8. [A] outside [B] except [C] like [D] as 9. [A] extensive [B] enormous [C] overall [D] entire 10. [A] with [B] in [C] to [D] of 11. [A] way [B] means [C] habits [D] technique 12. [A] split [B] distinguish [C] integrate [D] tell 13. [A] second [ B] latter [C] next [D] later 14. [A] learns [ B ] realizes [ C ] studies [ D ] understands 15. [A] upon [B] for [C]as [D] to 16. [A] either [B] neither [C] one [D] each 17. [A] exceptions [B] differences [C] sameness [D] divisions 18. [A] being [B] are [C] were [D] be 19. [A] although [B] whether [C] since [D] that 20. [A] then [ B ] nevertheless [ C ] still [ D ] moreover Model Test 2 Part III Cloze [15 MIN.] Decide which of the choices given below would best complete the passage if inserted in the corresponding

西电电子信息系统综合实验报告材料

电子科技大学 电子信息系统综合实验课程实验报告 实验名称电子信息系统综合实验 电子工程学院1402011 班Array梁思颖学号 同作者王梦路习习王保智郭鑫宇 实验日期2017 年11 月25 日

MATLAB实验——复杂噪声产生 1实验目的 (1)掌握四种热噪声的基本分布并利用MATLAB产生这几种噪声; (2)熟练使用MATLAB。 2 实验所用仪器(或实验环境) 软件:MATLAB; 硬件:计算机。 3实验容 利用MATLAB分别产生高斯分布、均匀分布、指数分布、瑞利分布的热噪声。4实验步骤 (1)服从高斯分布的热噪声 Matlab7.0本身自带了标准高斯分布的部函数randn,调用格式如下: Y = randn(n) Y = randn(m,n) Y = randn([m n]) Y = randn(size(A)) s = randn('state') randn函数产生的随机序列服从均值为m=0,方差σ2=1的高斯分布。 Y = randn(n)产生的是一个n×n的随机序列矩阵,而Y = randn(m,n) 和Y = randn([m n])产生的m×n的随机序列矩阵,Y = randn(size(A))产生的是大小与矩阵A同样大小的随机序列矩阵。 s = randn('state')返回的是一个具有两个元素的向量,该向量显示的是当前正态随机数产生器的状态。randn('state',s)指令可以将产生器的状态设置到s,而randn('state',0)则可以将正态随机数产生器的状态恢复到初始状态。 (2)服从均匀分布的热噪声 同样Matlab本身也自带了(0-1)单位均匀分布的部函数rand,格式如下: Y = rand(n)

专业英语期末考试试卷AB卷标准答案及评分标准

专业英语期末考试试卷A卷标准答案及评分标准(2009-2010第二学期) 一、Translate the following speciality vocabulary into Chinese (20×1=20) 标准答案:1.电气工程 2. 正电荷 3 .信道 4.家庭自动化 5.桌面应用软件 6.下降沿 7.波特率 8.红外线传感器9 数字信号10.激光技术 11光纤12.微处理器13振荡器14.半导体15.远程控制 16触发器17.阴极射线管18 代码错误19.波导管20.通信工程 评分标准:得分=做对的个数×1 二、Translate the following speciality vocabulary into English(10×1=10) 1.circuit 2.voltage 3.diode 4.triode 5.microwave oven 6.watchdog 7.sensor或transducer 8.current 9.transistor 10. magnifier或amplifier 评分标准:得分=做对的个数×1 四、Multiple choices. (2×10=20) 1-5 BCDBD 6-10 BAAAC 评分标准:得分=做对的个数×2 五、Translate the following sentences into Chinese (5×2=10) 1、电源有两种:电流源与电压源。 2、电子元器件分为有源元件与无源元件两类。 3、激光技术是用来测量物体的存在、传感器到物体之间的距离以及物体尺寸的一种技术。 4、计算机的“大脑”被称为微处理器。 5、串行口有四种工作模式。 六、Choose the right statements according to the following passage .(true(T) or false (F) (5×2=10)) P1: 1-5 T F T F T 评分标准:得分=做对的个数×2 七、Reading Comprehension(5×2=10)) 1-5 B C A D C 评分标准:得分=做对的个数×2

综合专业英语试题

专业英语试题一、词语翻译 1.Electromagnetic induction 电磁感应 2.Broadcasting 广播 3.发射机Transmitter 4.Encoder 编码器 5.光电阴极Photocathode 6.像素Pixel 7.Harmonic structure 谐波结构 8.多路器Mutiplexer 9.电离层Ionosphere 10.Deterministic 确定的 11.功率谱密度power clensity spectrum 12.信噪比signal-to-noise ratio 13.Demodulation 解调,检波14.Nonlinear 非线性的 15.V acuum-tube 真空(电子)管 16.Modulation coefficient 调制系数 17.Upper side frequency 上边频 18.调制信号modulation signal 19.直流电源DC power suply 20.Quadrature 正交 21.振荡器resonator 22.Inversion 倒置 23.差分difference 24.Cascade 串联,级联 25.Deemphasis 去加重 1.field-effect 场效应管 2.oscilloscope 示波器 https://www.sodocs.net/doc/be3557225.html,rmation 信息,消息,情报 4.optical fiber 光纤 5. signal-to-noise 信噪比 6.bandwidth 基带 7.vocal tract 声带 8.bipolar 双极(线)的 9.decoder 解(译)码器 10.Fourier series 傅里叶级数 11.decibel 分贝 12.modulation 调制,调节 13.amplifier 放大器,扩音机 14. transformer 变压器 15.resonator 振荡器 16.prescribe 指示,规定17.difference差分,差别 18.frequency modulation调频 19.frequency divider分频器 20.viewpoint 观点 21.impurity杂质,混合物 22.nanometers纳米 23.packaging封装 24.very large integration 超大规模集成电路 25.digital signal processing数字信号处理 26. baseband 基带 27.binary二进制编码 28.mainframe 主机,大型机 29.electronic mail电子邮件 30.mobile telephone service移动电话业务 二、英译汉 1.A serial link is often used to attach a computer to a modem. 答案:串口通常用来将计算机和调制解调器连接起来。 2.In the data communications world, data generally are defined as information that is stored in digital form. 答案:在数据通信领域,数据通常定义成以数字形式存储的信息。 https://www.sodocs.net/doc/be3557225.html,rmation that has been processed, organized, and stored is called data. 答案:经过处理、组织和存储的信息成为数据。 4.Modern communication systems use digital modulation techniques. 答案:现代通信系统采用的是数字调制技术。

电气工程及其自动化专业英语复习资料

1.1.1 We consider the flow of electric charges. A unique feature of electric charge or electricity is the fact that it is mobile; that is, it can be transferred from one place to another, where it can be converted to another form of energy. 我们认为电荷是流动的。电荷和电的特点是它具有流动性;即它可以从一个地方转移到另一个地方,在转移的过程中,电荷或电能转变为另一种形式的能量。 1.1.2 The power absorbed or supplied by an element is the product of the voltage across the element and the current through it. 一个元件吸收或者发出的功率是元件两端的电压和通过该元件的电流的乘积。 1.2.1 We might observe at this point that the polarity marks on Fig.1-4(b) are redundant since the polarity could be defined by the positions of the longer and shorter lines. 大家或许注意到图1-4(b)所标注的极性是多余的。因为恒压源的极性可以用长线、短线来定义。 1.2.2 It should be noted that an ideal voltage source (dependent or independent) will produce any current required to ensure that the terminal voltage is as stated, whereas an ideal current source will produce the necessary voltage to ensure the stated current flow. 应该注意一个理想电压源,(独立和受控)可向电路提供任意电流,以保证其端电压为规定值,而理想电流源,可向电路提供任意电压以保证其规定电流。 1.4.1 Still anther class of relationship is one between several variables of the same type which occurs as the result of the network configuration, i.e., the manner in which the various element of the network are interconnected. 另一类关系由于网络结构,即网络的不同元件互相连接的方式所产生的相同形式的一些变量间的关系。 1.4.2 Kirchhoff’s Current Law is based on the law of conservation of charge, which requires that the algebraic sum of charges within a system can not change. 基尔霍夫电流定律基于电荷守恒定律,要求一个系统内电荷的代数和不变。 1.5.1 Since a voltage is defined as existing between two nodes, it is convenient to select one node in the network to be a reference node or datum node and then associate a voltage or a potential with each of the other nodes. 由于电压定义为两个节点之间的相对变量,一个方便的做法是选择网络中的一个节点作为参考节点或基准节点,从而确定其他所有节点的电压和电位。 1.5.2 Mesh analysis is not quite as general as nodal analysis because it is only applicable to a circuit is planar. 由于网孔分析法仅适用于平面电路,故网孔分析法不像节点分析法那样通用。 1.6.1 We can proceed to our simplification of sinusoidal steady-state analysis by establishing the relationship between the phasor voltage and phasor current for each of the three passive elements. 通过建立三种无源元件各自的电压相量和电流相量之间的关系,我们可以对正弦稳态分析进行简化。 1.6.2 On the other hand, delta-connected sources are not common in practice because of the circulating current that will result in the delta-mesh if the three-phase voltage are slightly unbalanced. 另一方面,实际中三角形连接的电源并不常用,因为三相电压稍有不平衡就会在三角形连接的网孔中产生循环电流。 2.1.1 In every aspect of our increasingly technological society ---whether it is science,

西电研究生英语复习资料

Unit 1 1.除非我们共同快速we are on a trajectory for gloal warming to become much more intense unless we begin a concerted rapid shift toward a low carbon economy. 2.尽管Some of the dire projection may not occur, but in light of the warning from our best scientists, it would be beyond irresponsible to take the bet. 3.我们极大地破坏了大气层,By badly disrupting that envelope, we adversely affect every dimension of human well-being that is tied to the environment. 4.诸如干旱、Extreme weather events, such as drought , floods, and severe storms, become more intense and inflict greater damage to life and property. 5.即使我们明天停止气体排放Even if we cut off emissions tomorrow, the concentration of greenhouse gases in the atmosphere would continue rising since these gases persist in the atmosphere for a very long time—from decades to thousands of years after they are first emitted depending on the specific type of greenhouse gas. 6.如果我们忽视气候变化和依赖石油的风险,。If we ignore the risks of climate change and oil dependence, or fail to mobilize the political will needed to address them, then we will ultimately be forced into a much more costly and much less effective crash program down the road. 7.敏锐的专家们Alert pundits now foresee a world saturated with powerful computer chips, which will increasingly insinuate themselves into our gadgets, dwellings, apparel and even our bodies. 8.What we do in the next two to three years will determine our future. This is the defining moment. 9.在2004年In 2004, Swiss Re warned in a report that the costs of natural disasters, aggravated by climate change, threatened to double to150 billon a year in 10 years. 10.这些威胁The threat of this major disruption coming from a number of factors, including the increased costs of damage from extreme weather events such as floods, droughts, hurricanes, heat waves, and major storms. 11.S指出Stern also points to the consequences of climate change on the environment and on human health as economic growth and productivity suffer under the weight of degrading environmental conditions. 12.另外,我们招致Moreover, we would incur a very large opportunity cost, having lost out on the chance to become the economic leader in developing alternative and more efficient uses of energy.

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