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1、武汉理工大学工程硕士专业英语试题（A卷）班级 姓名 得分 PartITranslate the Following Vocabulary into Chinese.(10points)1.Eddy-CurrentLoss2.inductionmotor3.flip-flop4.superconductivity5.silicon-controlledrectifier6．magnetizingcurrent7．general-purposerelay8．solid-staterelay9.positiv
2、efeedback10.localareanetworkPartIITranslate the Following Vocabulary into English.(20points)1.万用表2.晶闸管3.示波器4.集成电路5.发电厂6.继电器7.微分方程8.功率因素9.运算放大器10.自耦变压器11.阻尼系数12.有功功率13.状态变量14.逻辑运算15.传感器16.数据总线17.占空比18.逆变器18.谐波20.换向器PartIIITranslate the Following Sentences into
3、Chinese.(40’)1.ThecapacitorisassumedtobelargesothatthevoltagethroughitinsteadystateisnearlyconstantUo.Assumethatinitiallytheswitchison,hence,thecurrentthroughtheswitchisIS.ThecapacitorvoltageisUo,thevoltageacrosstheswitchiszeroandthediodeV1isreversebiased.2.At
4、ime-varyingcurrentisrepresentedbythesymboli.Acommonformoftime-varyingcurrentisthesinusoidalcurrentoralternatingcurrent(AC),thatis,analternatingcurrentisacurrentthatvariessinusoidallywithtime.Suchcurrentisusedinthehousehold,toruntheairconditioner,refrigerator,w
5、ashingmachineandotherelectricappliances.3.Theswitchinglossesaresignificantandcanbemanaged.Theycanbefurtherdividedintothreecomponents:(a)theon-statelosses,(b)theoff-statelossesand③thelossesinthetransitionstates.forthequalityofreviewsandreview.Article26threview(
6、a)theCCRAcompliance,whethercopiesofchecks;(B)whetherdoubleinvestigation;(C)submissionofprogramcompliance,investigationorexaminationofwhetherviewsareclear;(D)theborrower,guarantorloans1.Theop-ampisanelectronicunitthatbehaveslikeavoltage-controlledvoltagesource.
7、Itcanalsobeusedinmakingavoltage-orcurrent-controlledcurrentsource.Anop-ampcansumsignals,amplifyasignal,integrateit,ordifferentiateit.Theabilityoftheop-amptoperformthesemathematicaloperationsisthereasonitiscalledanoperationalamplifier.Itisalsothereasonforthewid
8、espreaduseofop-ampsinanalogdesign.Op-ampsarepopularinpracticalcircuitdesignsbecausetheyareversatile,inexpensive,easytouse,andfuntoworkwith.2.Open-loopcontrolisfoundwhereverthereisn
