科技英语写作高级教程(第二版)参考答案Word文档下载推荐.doc
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a(该设备的成功设计需要详细地了解性能指标。
5、the;
a;
a(在氢原子的布尔模型中,一个电子绕一个质子以半径为R的圆周运转。
6、the(电阻的单位是欧姆。
7、an(这是一个h参数。
8、/;
/(图5-1画出了Oersted的实验。
9、A;
a(机器是能够传递力来完成某一确定目的的一种设备。
10、/(水压机将在第14章加以考虑。
11、the;
the[/](我们容易确定参数μ的值。
12、/;
the(根据式(2-1),我们得到以下的关系式。
13、the;
/(作者工作在位于阿林顿的得克萨斯大学。
14、an(甚至当积分区间并不是无穷时,能够恰当地显示一个时函数的傅氏变换的仪器是多么重要啊!
II、
1.Dr.EmmetgraduatedfromHarvardUniversityin2001.
2.ProfessorLiearnedhisPh.D.degreeinmechanicalengineeringfromtheXi’anUniversityofTechnologyin1988.
3.Nowweshallturntothediscussionoflocalareanetworks.
4.TheBainbridgemassspectrometerisasimportantaninstrumentastheopticalspectrometer.
5.Howlongatime[或Howmuchtime]isrequiredtothisexperiment?
Thedensityofasubstanceisitsmassperunitvolume.
6.Anincreaseinpressurealwayscausesadecreaseinvolume.
7.Fig.(2-5)showswhatisexpressedbyEq.(2-2).
8.Theunitofinductanceisthehenry.
III、
1.TheUASMAprotocolemploysauniqueframestructure.
2.Finally,abroadsteppedimpedancetransformerisdesignedbythismethod.
3.Dynamicanalysisandevaluationofthesecurityofaproactivesecretsharingsystem
4.Theapproachcanbeappliedtotheone-dimensionalpotentialbarrierwithanarbitraryprofile.
5.WeproposeanumericalmethodbasedonNewton’siterativemethod.
练习2
1.Thiscircuitconsistsofabattery,aninductorandacapacitor.
2.Computetheelectricfieldsatpointsa,b,andc.
3.ThissatelliteisusedforcommunicationsbetweentheUnitedStatesandGreatBritain,FranceandItaly.
4.Weassumethattheantennaisverticalandthatitslossiszero.
5.Chapters6,7,and8dealwithtransmissionlines.
1.Itserrorissixpartsin1012.
2.Thiscomputerstoresfourtimesmoreinformationthanthatone(does).
3.Thedemandforthiskindofequipmentinthenearfuturewillbe20timeswhatitis.
4.Thevoltageacrossthiscomponentisafewtenthsofavolt.
5.Nowitsinternalpressureisonethirdwhatitwas.
1.Thisobjectisoverfivetimesheavierthanthatoneis.
2.Unlessotherwisestated,itisassumedthatsilicontransistorsareusedandthatICBOcanbeneglected.
3.Thiscircuithastheadvantagesofsimplestructureandeasyadjustment.
4.Figs.1,2,and3showthisprocessindetail.
5.Forfurtherinformation,consultreferences[3,5,9].
练习3
1.Thisnewtypeofcomputerhasmanyadvantagesoverthegeneraltype.
2.Itisnotdifficulttosolvethisdifferentialequationfortheunknownquantity.
3.Ofthesefivenewchapters,thefirstonedealswiththebasicprinciplesofnegativefeedback.
4.Atthispoint/time,currentdiffersinphasefromvoltageby90o.
5.Byanalyzing[Bytheanalysisof]theparametersoftheinstrument,wecanunderstanditsperformance.
6.Wewillfindoutitsaveragevelocityoverthisdistance.
7.Thescienceofelectronicsistooimportantintheworldtoday.
8.Theysolvedthisproblemwithgreatdifficulty.
1.Forx>1,thereisnosolutiontothisequation[thisequationhasnosolution].
2.Upon[On]substituting[substitutionof]thesevaluesinto[in]the
equation,weobtainedthefollowingexpression..
3.ThiscircuitissimilarinoperationtothatofFig.1-10.
4.Thiscomputerisverygoodinperformance.
5.Thesewavestravelonlyinonedirection.
1.Thispaperpresentsanewmethodfortherecognitionofradartargets.
2.TheinfluenceofthemovingstateofthetargetonthetrackingaccuracyoftheEKFisgreat.
3.Anothercomsatwaslaunchedonthemorningofthe8thofOctober.
4.Voltageismeasuredinvolts.
5.TheywillleaveforBeijingtoattendaninternationalconferenceonmobilecommunication.
6.Unlessotherwisestated,itisassumedthatsilicontransistorsareusedandthatICBOcanbeneglected.
7.
练习4
1.Theforceactsperpendiculartothesurfaceofthetable.
2.Thethreecoefficientshereremainstobedetermined.
3.Thetwoequationsbelowwillbeoften(frequently)usedinlaterchapters/inthechapterswhichfollow.
4.Hereweusetwometalballs10cmapart.
5.Theoutputremains/staysconstant/unchanged/fixed/unaltered/thesame.
6.Allthetextbooksavailablediscussthisproblem.
7.Accurateinoperationandhighinspeed,computershavefoundwideapplications.
8.Theanswertothisproblemlookscorrect.
9.Twoparallelwiresadistance(of)δapartcarrythecurrenti.
10.Theproblemnowishowtomeasurethevoltageacrossthiscomponent.
11.Thesedatawillbesenttothecomputingcenter2kilometersaway.
12.Uponrearrangingtheequationabove,wehave[get,ob