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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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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/(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,obtain]thefollowingexpression.
13.Thesechargescaninteractwithotherchargespresent.
14.Forcescanbetransmittedwithoutcontact,contrarytothecommonbelief.
15.Thiscoefficientistypically0.35.
1.Inthiscase,theinputdoesnotfall;
nor[neither]doestheoutput.[…;
theoutputdoesnotfall,either.]
2.Theresistanceofaconductordependsnotonlyonthematerialofwhichtheconductorismade,butalsoonthesizeandtemperatureoftheconductor.
3.Thesescientistsareveryinterestedinthistopic.
4.Thisparametercanhardlybemeasured.
5.Inthislaboratory,thisinstrumentismoreexpensivethananyotherone/anyoneelse.
6.Thefeaturesofthisdevicearesmallsizeandlightweight.
练习5
1.Thisequationcanbesolvedineitherofthefollowingtwoways/thetwowayswhichfollow.
2.Thisbaseballwillsooncometorestbecauseofitsinteractionwiththeground.
3.Ourchoiceofthiscoefficientas1iscorrect.
4.Fromitsdefinitionastheratioofaforcetoalength,wecanseethatkhasthesameunitaswork(does).
5.Ouranalysisofthemachineisofgreatsignificance.
6.Thisfacilitatestheiruseincircuitanalysis.
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.
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)designinganewkindofsoftware.
5.Ironisalmostasgoodaconductorasaluminum.
练习6
1.Thisimage,itwillbenoticed,isarealimage.
2.Thistechnicalproblem,wehope,willbesolvedsoon.
3.210isapproximately1000,afactthatwethinkisveryusefulinthestudyofdigitalelectronics.
4.Aresistorofsay100ohmsshouldbeusedhere.
1.Noneofthosetextbookshave/hasmentionedthispoint.
2.Allofthesexvaluescannotsatisfytheequation.
3.Neitherofthetwoconditionsissatisfiedhere.
4.Inthepreceding/previouschapter,wediscussedallkindsofforce.
5.Thispaperdescribesanewmethodfordesigningaircraft.
6.Bytheendofthelastcentury,thecompanyhadmanufactured5000
radars.
7.Since2008,thisresearchinstitutehasbeendevelopingaspecialkindofrobot.
1.InSection1-2,theconceptofforcewasintroduced.
2.Asearlyasthe1940s,itwasfoundthatsemiconductorsareveryuseful.
3.Thisresultcanalsobearrivedatinanotherway.
4.Atthattimenousewasmadeofthisphenomenon/…,this
phenomenonwasmadenouseof.
5.Thispointwillbedealtwithinthenextsection.
1.Thiscomputerworksmuchbetterthanthatone(does)/Thiscomputerismuchbetterinperformancethanthatone(is)..
2.Thiscomputerrequiresmanymorecomponentsthatthatone(does).
3.Thedistanceofthemoonfromtheearthisasgreatas240000miles.
4.Thegreatertheresistance,thelongertimeittakesforthecapacitortoreachitsmaximumvoltage/…,thelongertimeisrequiredforthecapacitortoreachitsmaximumvoltage.)
5.Thecurrentassmallas0.1Acannotproduceenoughheat.
V、
1.Itiseasyforustodeterminetheweightofthebody.或:
Wecandeterminetheweightofthebodyeasily.
2.Thetwoengineersarebusy(in)designinganewtypeofcomputer.
3.Wefindthisconceptverydifficulttoexplain.
4.Noneofthesewindowscanwithstandsolargeaforce.
5.Workequals[isequalto]forcemultipliedby/timesdistance.
6.Theresultsobtainedagreewiththeexperimentalvalues.[…areinagreementwiththeexperimentalvalues.]
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