职称英语考试短语

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1、Unit1请将下述词语译成英文抽样量化与编码　　samplingquantizingandcoding话路　　speechchannel幅值　　amplitudevalue抽样频率samplingfrequency抽样速率samplingrate脉冲流streamofpulses重复率repetitionrate编码过程codingprocess模拟信号analogsignal传输质量transmissionquality数字通信digitalcommunication数字传输digitaltransmission含噪声的环境noisyenvironment传输路由transmiss

2、ionpath信噪比signal-to-noisyratio信号电平signallevels地面系统terrestrialsystem噪声功率noisepower二进制传输binarytransmission反向操作reverseoperation8位码序列8-digitalsequence接收端receivingterminal帧格式frameformat同步字　synchronizationword一、请将下列词组译成中文：Theschemesforperformingthesethreefunction实现这三项功能的方案Aseriesofamplitudevalue一串幅值A

3、speechchanneloftelephonequality电话质量的话路Asequenceof8-binarydigital　一个8位二进制码的序列Aminimumtheoreticalsamplingfrequency理论上的最小抽样频率Avoicechanneloccupyingtherange300HZto3.4kHZ占据着300HZ到3.4KHZ频率范围的话路8-digitspersamplevalue每个样值8位码Thesparkingofacarignitionsystem汽车点为系统的打火Thestreamofthepulseswitharepetitionrate

4、of64kHZ重复率为64KHZ的脉冲流Therelationshipofthetruesignaltothenoisesignal真实信号与噪声信号的关系Thesignalreceivedfromasatellite从卫星接收的信号Thecompleteinformationaboutaparticularmessage一条特定消息中的全部信息Theshapeofthetransmittedsignal传输信号的波形Theattenuationintroducedbytransmissionpath由传输路由引入的衰减Theunitthatconvertssampledamplit

5、udevaluetoasetofpulses将抽样的幅值转换成一串脉冲的单元Asequencerelatingtochannel1,2andsoon涉及到第一路第二路及其它各路的序列Auniquesequenceofpulsecalledsynchronizationword被称作同步字的特定的码序列Terrestrialsystem地面系统Thepresenceorabsenceofthepulse　　脉冲的“有”或“无”Ahigh-speedelectronicswitch高速电子开关Thetimedivisionmultiplexer　　时分多路复用器Timedivisionm

6、ultiplexing时分多路复用Unit3请将下述词组译成英文联网技术　　networkingtechnology国际标准化组织　theinternationalorganizationforstandardization参考模型　referencemodel数据分组datapackets应用程序opplicationprogram分层layering硬件和软件hardwareandsoftware表示层thepresentationlayer传输层thetransportlayer数据链路层thedatalinklayer网络服务networkservices文件接入file-a

7、ccess数据格式dataformat主机host协议protocol连接connectivity逻辑选址logicaladdressingproprietarynetworkingsystem专有的网络系统Compatibilitybetweenthevarioustypesofnetworks各种网络之间的兼容Sevennumberedlayers七层Standardizationofnetworkcomponents网络部件的标准化Errorreco