电子信息与通信工程专业外语期末考试重点.doc

LSIlarge-scaleintegration大规模集成电路

PLCProgrammableLogicController可编程逻辑控制器

LEDlight-emittingdiodes发光二极管

ICIntegratedcircuit集成电路

ACAlternateCurrent交流

DCDirectCurrent直流

DSPdigitalsignalprocessing数字信号处理digitalsignalprocessor数字信号处理器

NFCNearFieldCommunication近距离无线通信

PCSPersonalCommunicationsService个人通信服务

PDAPersonalDigitalAssistance掌上电脑（个人数字助理）

PDCPersonalDataCellular分组数据蜂窝

QoSQualityofService服务质量

RTTRadiationTrackingTransducer无线电传播技术

UWBUltraWideBand超宽带

二、翻译公式

基本函数公式

英语-公式

a2-b2=(a+b)(a-b)

asquaredminusbsquaredequalsopenparenthesisaplusbcloseparenthesistimesopenparenthesisaminusbcloseparenthesis.

xplusoneoverthequantityxsquaredtimesthequantityxcubedminusfourtothetwo-thirdpower.

Thelimitasnapproachesinfinityofthequantityoneovernsquaredtimesoneplustwoplustoplusn.

{a[b+(c-d)]}

onehalfopenbrace,aopenbracketbplusopenparenthesiscminusdcloseparenthesisclosebracketclosebrace.

Capitalsigmathequantityasubntimesbsubntimesthecosineofntimeomegaover2timespifromnequalsonetonequalsfive.

Productofallanfromnequalsonetoinfinity.

max(a1,a2,……an),min(a1,a2,……an)

Maximum/minimumvalueoftheseriesasubonetoasubn.

Limitasnapproachesinfinityofthequantityofoneplusoneoverntothenthpowerequalse.

Upper/lowerlimitofasubnasnapproaches/tendstoinfinity.

y’=-1/xn

yprimeequalsminusoneoverxtothenthpower.

Thefirstderivativeofywithrespecttoxequalsminusoneoverxtonthpower.

Thesecondderivativeofywithrespecttoxequalsasquaredtimesetothepowerofminusatimesx.

Theindefiniteintegralofthequantityaoverxminusawithrespecttoxequalsatimesthequantitylogarithmoftheabsolutevalueofxminusaplusc.

Theintegralfrom0topiovertwoofthequantityoneoveroneplusatimescosineofxwithrespecttox.

(a0,m,n均为正整数)

atotheminusmovernpo