西安电子科技大学 研究生 科技英语教材 答案.docx
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西安电子科技大学研究生科技英语教材答案
V、练习参考答案
练习1
II、
1.艾米特博士2001年毕业于哈佛大学
Dr.EmmetgraduatedfromHarvardUniversityin2001.
2.李教授1988年在西安理工大学获得机械工程博士学位
ProfessorLiearnedhisPh.D.degreeinmechanicalengineeringfromtheXi’anUniversityofTechnologyin1988.
3.现在我们转向讨论一下无线网
Nowweshallturntothediscussionoflocalareanetworks.
4.Bainbridge质谱仪是与光谱仪一样重要的仪器
TheBainbridgemassspectrometerisasimportantaninstrumentastheopticalspectrometer.
5.做这个实验需要多长时间
Howlongatime[或Howmuchtime]isrequiredtothisexperiment?
6.压力的增加会引起体积的减少
Anincreaseinpressurealwayscausesadecreaseinvolume.
7.图(2-5)话出了式(2-2)所表示的情况
Fig.(2-5)showswhatisexpressedbyEq.(2-2).
8.电感的单位是亨利
Theunitofinductanceisthehenry.
III、
1.[汉]UASMA协议采用了独特的帧结构.
[英]UASMAprotocolemploysanuniqueframestructure.
[改]TheUASMAprotocolemploysauniqueframestructure.
2.[汉]最后,用这种方法设计了宽带阶梯阻抗变换器.
[英]Atlast,broadsteppedimpedancetransformerisdesignedbythismethod.
[改]Finally,abroadsteppedimpedancetransformerisdesignedbythismethod.
3.[汉]先应秘密共享系统安全性的动态分析和评估
[英]Dynamicanalysisandevaluationofsecurityforproactivesecretsharingsystem
[改]Dynamicanalysisandevaluationofthesecurityofaproactivesecretsharingsystem
4.[汉]该方法适用于任意形状的一维势垒
[英]Theapproachcanbeappliedtoone-dimensionalpotentialbarrierwitharbitraryprofile
[改]Theapproachcanbeappliedtotheone-dimensionalpotentialbarrierwithanarbitraryprofile.
5.[汉]我们提出一种基于牛顿迭代法的数值方法.
[英]WeproposeakindofnumericalmethodbasedontheNewton’siterativemethod.
[改]WeproposeanumericalmethodbasedonNewton’siterativemethod.
练习2
I、
1.该电路由一个电池,一个电感器和一个电容器组成.
Thiscircuitconsistsofabattery,aninductorandacapacitor.
2.试计算在a,b,c三点处的电场.
Computetheelectricfieldsatpointsa,b,andc.
3.这颗卫星用于美国,法国,意大利之间的通信
ThissatelliteisusedforcommunicationsbetweentheUnitedStatesandGreatBritain,FranceandItaly.
4.我们假设该天线是垂直的,且其损耗为零.
Weassumethattheantennaisverticalandthatitslossiszero.
5.第6,7,8章论述传输线
Chapters6,7,and8dealwithtransmissionlines.
II、
1.其误差为千亿分之六
Itserrorissixpartsin1012.
2.这台计算机所储存的信息比那台多三倍.
Thiscomputerstoresfourtimesmoreinformationthanthatone(does).
3.不久的将来对这种设备的需求量为现在的20倍
Thedemandforthiskindofequipmentinthenearfuturewillbe20timeswhatitis.
4.这个元件上的电压为零点几福特
Thevoltageacrossthiscomponentisafewtenthsofavolt.
5.现在其内部的压力被减少了15倍
Nowitsinternalpressureisonesixteenthwhatitwas.
III、
1.[汉]这个物体比那个物体重4倍多
[英]Thisobjectisoverfourtimesheavythanthatoneis.
[改]Thisobjectisoverfivetimesheavierthanthatoneis.
2.[汉]除非另有说明,我们假设使用的是硅管,ICBO可以忽略不计
[英]Unlessotherwisestated,itisassumedthatsilicontransistorsareusedandICBOcanbeneglected.
[改]Unlessotherwisestated,itisassumedthatsilicontransistorsareusedandthatICBOcanbeneglected.
3.[汉]这个电路的优点是结构简单,容易调整.
[英]Thiscircuithastheadvantageofsimpleinstructure,easytoadjust.
[改]Thiscircuithastheadvantagesofsimplestructureandeasyadjustment.
4.[汉]图1,2,3详细地画出了这个过程
[英]Fig.1,2,3showthisprocessdetaildly
Figs.1,2,and3showthisprocessindetail.
5.[汉]对于进一步的信息,参考文献[3],[5],[9].
[英]Forfurtherinformations,consultreferences[3],[5]and[9].
Forfurtherinformation,consultreferences[3],[5],[9].
练习3
I、
1.这种新型计算机和普通计算机相比有许多优点
Thisnewtypeofcomputerhasmanyadvantagesoverthegeneraltype.
2.解这个微分方程把未知量求出来并不困难
Itisnotdifficulttosolvethisdifferentialequationfortheunknownquantity.
3.在这新的五章中,第一章论述负反馈的基本原理
Ofthesefivenewchapters,thefirstonedealswiththebasicprinciplesofnegativefeedback.
4.这时,电流与电压相位相差90度
Atthispoint/time,currentdiffersinphasefromvoltageby90o.
5.通过分析该仪器的参数,我们就能了解它的性能
Byanalyzing[Bytheanalysisof]theparametersoftheinstrument,wecanunderstanditsperformance.
6.我们要求出它在这一距离上的平均速度
Wewillfindoutitsaveragevelocityoverthisdistance.
7.电子学这门科学在现今世界太重要了
Thescienceofelectronicsistooimportantintheworldtoday.
8.他们极为困难地解出了这道题
Theysolvedthisproblemwithgreatdifficulty.
II、汉译英,划线部分要去使用介词短语表示.
1.若x>1,则该方程成立
Forx>1,thereisnosolutiontothisequation[thisequationhasnosolution].
2.在把这些数值代入该方程后,我们得到了下面的表达式
Upon[On]substituting[substitutionof]thesevaluesinto[in]the
equation,weobtainedthefollowingexpression..
3.这个电路的工作情况类似于图1-10的电路
ThiscircuitissimilarinoperationtothatofFig.1-10.
4.这台计算机的性能很好
Thiscomputerisverygoodinperformance.
5.这些波只向一个方向传播
Thesewavestravelonlyinonedirection.
III、
1.[汉]本文提出了雷达目标的一种新的识别方法
[英]Thispaperpresentsanewkindofrecognitionmethodofradartarget.
[改]Thispaperpresentsanewmethodfortherecognitionofradartargets.
2.[汉]目标的运动状态对EKF跟踪精度的影响是非常大的
[英]TheinfluenceofthemovingstateofthetargetforthetrackingaccuracyoftheEKF.
[改]TheinfluenceofthemovingstateofthetargetonthetrackingaccuracyoftheEKFisgreat.
3.[汉]在10月8日早上又发射了一颗通信卫星.
[英]Anothercomsathasbeenlaunchedinthemorningofthe8thofOctober.
[改]Anothercomsatwaslaunchedonthemorningofthe8thofOctober.
4.[汉]电压时用伏特来度量的
[英]Voltageismeasuredwithvolt.
[改]Voltageismeasuredinvolts.
5.[汉]他们将赴北京参加移动通信国际会议
[英]TheywillleavetoBeijingtoattendainternationalconferenceofmobilecommunication.
[改]TheywillleaveforBeijingtoattendaninternationalconferenceonmobilecommunication.
练习4
I、
1.该力垂直于桌面作用
Theforceactsperpendiculartothesurfaceofthetable.
2.这里的三个系数有待于确定
Thethreecoefficientshereremainstobedetermined.
3.下面两个式子在后面几章将会经常用到
Thetwoequationsbelowwillbeoften(frequently)usedinlaterchapters/inthechapterswhichfollow.
4.这里我们使用相距10厘米的两个金属球
Hereweusetwometalballs10cmapart.
5.输出保持不变
Theoutputremains/staysconstant/unchanged/fixed/unaltered/thesame.
6.现在的教科书均讨论了这一问题
Allthetextbooksavailablediscussthisproblem.
7.计算机由于运算准确,速度快而得到了广泛的应用
Accurateinoperationandhighinspeed,computershavefoundwideapplications.
8.这个题的答案看起来的正确的
Theanswertothisproblemlookscorrect.
9.我们将使用一段相距距离为δ的两根平行导线
Twoparallelwiresadistance(of)δapartcarrythecurrenti.
10.现在的问题是如何测量这个元件上的电压
Theproblemnowishowtomeasurethevoltageacrossthiscomponent.
11.这些数据将被传送到2千米外的计算中心
Thesedatawillbesenttothecomputingcenter2kilometersaway.
12.在对上面的那个方程整理后,我们得到了下面的表达式
Uponrearrangingtheequationabove,wehave[get,obtain]thefollowingexpression.
13.这些电荷能与存在的其他电荷相互作用
Thesechargescaninteractwithotherchargespresent.
14.力可以没有接触而被传递,这与普通的观念相反
Forcescanbetransmittedwithoutcontact,contrarytothecommonbelief.
15.这个系数的典型值为0.35
Thiscoefficientistypically0.35.
II、
1.[汉]在这种情况下,输入并不下降,输出也不下降.
[英]Inthiscase,theinputdoesnotfall;theoutputdoesnotfall,too.
[改]Inthiscase,theinputdoesnotfall;norneitherdoestheoutput./theoutputdoesnotfall,either.
2.[汉]导体的电阻不仅取决于制成导体的材料,而且取决于导体的尺寸和温度.
[英]Theresistanceofaconductornotonlydependsonthematerialwithwhichtheconductorismade,butalsoonthesizeandtemperatureoftheconductor.
[改]Theresistanceofaconductordependsnotonlyonthematerialofwhichtheconductorismade,butalsoonthesizeandtemperatureoftheconductor.
3.[汉]这些科学家们对该论题很感兴趣
[英]Thesescientistsareveryinterestingtothistopic
[改]Thesescientistsareveryinterestedinthistopic.
4.[汉]这个参数几乎不能测出来
[英]Thisparameteralmostcannotbemeasured
[改]Thisparametercanhardlybemeasured.
5.[汉]这这个实验室中,这台仪器比其它任何一台都贵
[英]Inthislaboratory,thisinstrumentismoreexpensivethananyone
[改]Inthislaboratory,thisinstrumentismoreexpensivethananyotherone/anyoneelse.
6.[汉]该设备的特点是体积小,重量轻.
[英]Thefeatureofthisdeviceissmallinsize,lightinweight.
[改]Thefeaturesofthisdevicearesmallsizeandlightweight.
练习5
I、
1.Thisequationcanbesolvedineitherofthefollowingtwoways/thetwowayswhichfollow.
2.Thisbaseballwillsooncometorestbecauseofitsinteractionwiththeground.
3.Ourchoiceofthiscoefficientas1iscorrect.
4.Fromitsdefinitionastheratioofaforcetoalength,wecanseethatkhasthesameunitaswork(does).
5.Ouranalysisofthemachineisofgreatsignificance.
6.Thisfacilitatestheiruseincircuitanalysis.
II、
1.Thispolicecarisequippedwithareceiverthesizeofamatchbox.
2.Wiresonehundredththediameterofasilkthreadareusedtoconnectthesecomponents.
3.Wemustwatercooltheseequipments/devices.
4.Inthepast,telephonecallswereoperatorconnected.
5.ACcanbechanged/turned/converted/transformed/translatedinto/toDC,aprocesscalled/knownas/referredtoasrectification.
6.Amagnetattractsironmaterials,afamiliarphenomenon.
7.Computersarecapableofprocessinginformation,aprocessthatpreviouslycouldbeaccomplishedonlyinsideourheads.
8.Aninstrumentformeasuringcurrent,voltage,andresistance,themultimeteriswidelyusedinelectricalengineering.
III、
1.Secs.1.1and1.2willdiscussseveralotherproblems.
2.Problemsarelisted/givenonpp.1-5.
3.Intheequationsabove,allh’sarethehybridparameters.
4.Themassofthestandardpoundisequalto0.4535924277kilograms.
5.Alla’sandb’sinEq.(5-1)arerelatedtotheimpedanceRo.
6.Wemusttaketheeffectoftemperatureon[upon]semiconductorsinto
account.
7.Inthiscase,thevariationofoutputwithinputisverysmall.
8.Thiscurveshowsthedependenceofdistanceon/uponspeed.
IV、
1.Noneofthemcansolvethisspecialtypeofdifferentialequation.
2.Theydonotknowwhetherthismaterialcanstandsolargeaforceornot.
3.ThereareMpolygonsaltogether,eachofwhichhasNvertexes.
4.Thesetwoengineersarebusy(in)
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