【文章內(nèi)容簡介】 voltage勵(lì)磁電壓 prime mover原動(dòng)機(jī)induction generator感應(yīng)（異步）發(fā)電機(jī)synchronous machine同步發(fā)電機(jī) field winding勵(lì)磁繞組Yconnected windings星形連接繞組 turbine generator渦輪發(fā)電機(jī) lead導(dǎo)線flux通量，磁力線 transformer變壓器primary winding一次繞組 secondary winging二次繞組 reluctance磁阻 instruction 指令 document文件audio signal聲頻信號，音頻信號 program程序 keyboard鍵盤 software軟件central processing unit中央處理單元 workstation工作站 server服務(wù)器 client客戶microputer微型計(jì)算機(jī) desktop puter臺(tái)式計(jì)算機(jī) notebook puter筆記本電腦 handheld puter掌上電腦 mouse鼠標(biāo) sound card聲卡 modem調(diào)制解調(diào)器operating system操作系統(tǒng) serial processing串行處理 parallel processing并行處理 discharge放電megabytes(MB)兆字節(jié) install安裝 setup安裝update更新，修改 adapter適配器puter language計(jì)算機(jī)語言 highlevel language高級語言 piler編譯程序 interpreter解釋程序system software系統(tǒng)軟件 application software應(yīng)用軟件 bootstrap program引導(dǎo)程序 date base數(shù)據(jù)庫coaxial cable同軸電纜 fiberoptic cable光纜 microwave微波 infrared紅外線的 broadband寬帶 narrowband窄帶electric power system電力系統(tǒng) fuse保險(xiǎn)絲熔斷器transmission line輸電線路interconnection互相連接，互聯(lián)power system protection電力系統(tǒng)保護(hù) circuit breaker斷路器electromechanical relay電磁繼電器 protective relay保護(hù)繼電器 thermal relay熱繼電器rectifier bridge relay整流橋型繼電器 electronic relay電子繼電器openloop control system開環(huán)控制系統(tǒng) closedloop control system閉環(huán)控制系統(tǒng)選擇題： is conventional(positive charges) current is(amperes) energy required(voltage) plus(+)and(voltage polarity) to the(absorbed) independent voltage(twoterminal element) are(passive) ideal dependent(active) are(four) a voltage(current) circuit element(the resistor)’s Law states(directly proportional to) resistor whose(a nonlinear resistor)4.(An open circuit)is a circuit electric heater(12Ω)’s Laws are(topology of the network)’s Current Law can(two ways)’s Current Law is(the law of conservation of charge)’s Voltage Law(the law of conservation of energy) algebraic sum(zero) analysis is(KCL, KVL)2.(Nodal analysis)method is a circuit(N1) potential at(zero) analysis applies(KVL, mesh) voltage across(90176。) voltage across(90176。) in an(100∠100176。) threephase(four) three voltages(balanced threephase voltages) voltage produced(an analog) information(a digital) device that(A/D) thermocouple pair(voltage) D/A is(analog form) algebraic bination(two) to the(multiplication, addition) mutative rule(the order) associative rule(the validity) relation A+(identity) process of(analogtodigital conversion)2.(A temperature transducer)is a device precision and(inpatible) precision of(the number of binary bits) the(two) one time,(analog puter) the invention(solidstate) the operational(a very small voltage difference) wide application(negative feedback networks) useful range(80) switching losses(the offstate losses) typical power() power transistors,(high reverse) rate of(power losses) DCDC converter(direct current, direct current) Buck is(current stepup) PWM control(pulse width) gain of(the input dc source, the output voltage) power inverters(threephase type) output of(sinusoidal voltage) constant speed(ac voltage sink load) source inverters(inductive loads) amplitude in(pulsewidth) thumb is(the relative motion of conductor) induction motors(never reaches) coils(large AC) a induction(600) the difference(smaller) electric machine(generating) breakdown torque(maximum) speed of(the frequency of the current) field winding(a DC) cylindrical rotor(highspeed steamturbinedriven generators) turbine generators(3600rpm) field current(an exciter) transformer is(a magnetic field) primary winding(the power source) core construction(shell form) transformer that(distribution transformer) losses are(resistive) puter works(a series of stored instructions) keyboard or(an input) puter network(a local area network) puter that(client) hard disk(a storage) operations are(the ALU) 16bit(sixteen bits) microprocessor accesses(more rapidly than) stored in(permanently disappears) basic information(CMOS)1.(A network card)is used to 2.(AGP slots)are primarily used notebook puters(LCDs) clarity on(dot pitch)5.(A dot matrix printer)printer uses 1.(A support module)can be used puter’s microprocessor(machine language) belongs to(highlevel programming language) operating system(system software)5.(The file management system)allocates and cables(four)2.(Fiberoptic cables)do not transmission capacity(broader)4.(A modem)converts the signals 5.(A router)that connects at 翻譯： 6The modern society 現(xiàn)代社會(huì)比以前更加依賴于電力供應(yīng)。Electric power systems 電力系統(tǒng)（或電能系統(tǒng)），已經(jīng)變成工業(yè)社會(huì)必不可少的部分，它提供電能給現(xiàn)代社會(huì)。The first plete 第一個(gè)完整的電力系統(tǒng)（包括有發(fā)電機(jī)、電纜、保險(xiǎn)絲、電表和負(fù)載）被托馬斯愛迪生建立，它于1882年的9月在紐約城歷史上的珍珠街站開始，這是一個(gè)直流系統(tǒng)。Voltage levels can 在交流系統(tǒng)中，電壓能夠很容易被傳輸，因而為生產(chǎn)、傳輸和消耗的不同電壓的使用提供了靈活性。The first threephase 第一個(gè)三相傳輸線于1893年在北美投入使用，它位于南加利弗里亞州2300V12km的傳輸線。Eventually 最終在北美60Hz被采用為標(biāo)準(zhǔn)頻率，盡管50Hz在其它國家已被使用。To avoid the 為了避免電壓不受限制的數(shù)值增升，工業(yè)上已經(jīng)標(biāo)準(zhǔn)化了電壓水平。With the development 隨著交流/直流轉(zhuǎn)換設(shè)備的開發(fā)，高