10级专业英语试卷

第1页共7页洛阳理工学院2012/2013学年第一学期专业英语期末考试试题卷（A）适用班级：B100509/10/11/12考试日期时间：2012.11.29一、用英语写出缩写形式的全称(每小题1分，共10分)1.ADC2.CATV3.CAD4.DSP5.DC6.FM7.HDTV8.IEE9.IEEE10.LED二、PleasetranslatethefollowingphrasesintoEnglish.(每小题2分，共30分)1.模拟电路2.集成电路3.共射极电路4.负载电阻5.步进制6.纵横制7.电子交换机8.长途网9.灰度图像10.直方图均衡11.图像对比度12.结果矩阵13.真空三极管14.纠错编码15.视线传播三、PleasetranslatethefollowingphrasesintoChinese.(每小题2分，共30分)第2页共7页1.very-high-frequency2.ultra-high-frequency3.quadratureamplitudemodulation4.stored-programcontrol5.circuitswitch6.packetswitch7.CATT(ChinaAcademyofTelecommunicationsTechnology)8.edgefilter9.magnitudespectrum10.objectrecognition11.phasespectrum12.binary-codednumber13.Hi-Fi14.electromagneticinduction15.single-sideband四、TranslatethefollowingsentencesintoChinese.(每小题2分，共30分)1.Seetheanswersasgivenattheendofthisbook．2.Forallitsgreatsize,themachinemovesnoiselessly．3.Itisdesiredthattheswitch(should)produceonlyoneclockpulseeachtimeitisclosed．4.Inatransistortheoutputcurrentdependsupontheinputcurrent,henceitisacurrentoperateddevice.5.Asrubberpreventselectricityfrompassingthroughit,itisusedasinsulatingmaterial．6.Dependingontherelationshipbetweenthesignalfrequenciesandthesamplingrate,spectralinversionmaycausetheshapeofthespectruminthebasebandtobeinvertedfromthetruespectrumofthesignal.7.Lowpassfiltersblurimages,highpassfiltersemphasizesharpchangesingrayscalelevel,andedgefilterslocateedgesinanimage．8.Theavalanchephotodiode(APD)detectorisfollowedbyafront-endamplifierandequalizerorfiltertoprovidegainaswellaslinearsignalprocessingandnoisebandwidthreduction.9.ThemainbenefitsofTD-SCDMAarethatitcanbeimplementedlessexpensivelythancomparable第3页共7页3GsystemssinceitismuchmorespectrumefficientandiscompatiblewithGSMnetworkelements,allowing3Gserviceswithoutinstallationofcompletelynewinfrastructure.10.Furthermore,thisinformationwouldbeavailabletothepatient’sprivatephysicianandtothis(oranother)hospitalincaseofasubsequentreadmissionortransfertoanotherfacility.11.Severaldifferenttypesofcomputerperipheralsmayappearasnetworkterminals,andsoalsocancomputersfunctioninginseveraldifferentways.12.Intensityisameasureofpowerperunitarea,andevenalaserthatemitsonlyafewmilli-wattscanproducealotofintensityinabeamthat’sonlyamillimeterindiameter.13.Atpresent,thestateofmostsemiconductordevicetechnologyissuchthatthedevicedesignandprocesstechnologymustbesupplementedbyscreeningandinspectionprocedures,ifultimatedevicereliabilityistobeobtainedandcontrolled．14.Becauseoftheveryhighopen-loopvoltagegainoftheop-amp,theoutputisdrivenintopositivesaturation(closeto+V)whenthesamplevoltagegoesslightlyabovethereferencevoltage,anddrivenintonegativesaturation(closeto-V)whenthesamplevoltagegoesslightlybelowthereferencevoltage.15.Intergradedcircuitsarealsoclassifiedaccordingtotheirfunctions.DigitalorlogicalICareusedasswitches,theyareeitheronoroff.Incomputerstheonandoffstatescorrespondto0or1.OtherICiscalledlinearoranalogIC.第4页共7页洛阳理工学院2012/2013学年第一学期专业英语期末考试试题卷（A）答案及评分标准适用班级：B100509/10/11/12考试日期时间：2012.11.29一用英语写出缩写形式的全称(每小题1分，共10分)1.A/D,ADCAnalog-to-DigitalConverter2.CATVCableTelevision3.CADComputer-AidedDesign4.DSPDigitalSignalProcessing,DigitalSignalProcessor5.DC,dcDirectCurrent6.FMFrequencyModulation7.HDTVHighDefinitionTelevision8.IEEInstituteofElectricalEngineers9.IEEEInstituteofElectricalandElectronicEngineers10.LEDLightEmittingDiode二PleasetranslatethefollowingphrasesintoEnglish.(每小题2分，共30分)1.模拟电路analogcirccuit2.集成电路integratedcircuit3.共射极电路commonemittercircuit4.负载电阻loadresistor5.步进制step-by-step6.纵横制crossbar7.电子交换机electronicswitch8.长途网long-distancenetwork9.灰度图像grayscaleimage10.直方图均衡histogramequalization11.图像对比度imagecontrast12.结果矩阵resultantmatrix13.真空三极管triodevacuumtube14.纠错编码error-correctioncode15.视线传播lospropagation三PleasetranslatethefollowingphrasesintoChinese.(每小题2分，共30分)1.very-high-frequency甚高频第5页共7页2.ultra-high-frequency超高频3.quadratureamplitudemodulation正交幅度调制4.stored-programcontrol存储程序控制5.circuitswitch电路交换6.packetswitch分组交换7.CATT(ChinaAcademyofTelecommunicationsTechnology)中国电信技术学会8.edgefilter边缘滤波器9.magnitudespectrum幅度谱10.objectrecognition目标识别11.phasespectrum相位谱12.binary-codednumber二进制编码数13.Hi-Fi高保真度14.electromagneticinduction电磁感应15.single-sideband单边带四TranslatethefollowingsentencesintoChinese.(每小题2分，共30分)1.Seetheanswersasgivenattheendofthisbook．请参阅本书末尾给出的答案。2.Forallitsgreatsize,themachinemovesnoiselessly．尽管体积大,但该机器的运转噪声很小。3.Itisdesiredthattheswitch(should)produceonlyoneclockpulseeachtimeitisclosed．人们希望,开关每闭合一次只产生一个脉冲。4.Inatransistortheoutputcurrentdependsupontheinputcurrent,henceitisacurrentoperateddevice.晶体管的输出电流取决于输入电流,因此它是电流控制器件。5.Asrubberpreventselectricityfrompassingthroughit,itisusedasinsulatingmaterial．因为橡胶不导电,所以用作绝缘材料。6.Dependingontherelationshipbetweenthesignalfrequenciesandthesamplingrate,spectralinversionmaycausetheshapeofthespectruminthebasebandtobeinvertedfromthetruespectrumofthesignal.根据信号频率和采样频率之间的关系的不同,可能出现“频谱反转”现象——基带频谱的形状和信号真实频谱的形状正好相反。7.Lowpassfiltersblurimages,highpassfiltersemphasizesharpchangesingrayscalelevel,andedgefilterslocateedgesinanimage．低通滤波器使图像变得模糊,而高通滤波器突出了图像的灰度锐变