英语改错及翻译

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1、PartI改错为了发射无线电波，必须产生高频振荡。Sendingoutradiowaves,high-grequencyoscillationsmustbegenerated.波能绕其通道上的障碍物的边缘弯曲行进，这一特性称为绕射。Wavesareabletoblendaroundtheedgeofanobstacleintheirpath,thispropertyiscalleddiffraction.这条曲线显示了该电路中的电流随外加电压的变化情况。Thecurveshowsthesituationofthecurrentinthecitcuitvaryingth

2、eappliedvoltage.他们对这一论题很感兴趣。Theyareveryinterestinginthistopic.其他类型的电动机也广泛地用在工业上。Othertypesoftheelectricmotoralsoarewidelyusedinindustry.任何学生均不会解这种特殊的方程。Anystudentcannotsolvethiskindofspecialequation.直到发明了显微镜后对细菌的真正研究才成为可能。Untiltheinventionofthemicroscopetherealstudyofbacteriabecamepossi

3、ble.必须了解这种材料是否能经受住这么大的力。Itisnecessarytoknowifthismaterialcanstandasolargeforceornot.两个小时后机器会自动再次启动。Themachinewillautomaticallystarttooperateagaintwohourslater.该实验室是从八点钟开始的。Theexperimentbeganfrom8o’clock.电压是用伏特来度量的。Voltageismeasuredwithvolt.这两个工程师正忙于设计一种新型的软件。Thistwoengineersarebusytodes

4、ignatypeofnewsoftware.铜是一种物质，而空气也是一种物质。Thecopperisakindofmatterandsodoesair.他们将赴北京参加一个通讯国际会议。TheywillleavetoBeijingtoattendainternationalconferenceofcommunications.这种材料很难加工。Thismaterialisverydifficulttobemachined.若把式7带入式8就得到a=b。IfEq.7issubstitutedinEq.8,weobtaina=b.声音传播的速度比光慢的多。Soundtra

5、velslessfasterthanlightis.功等于力乘以距离。Workequalstoforcemultiplyingdistance.这个设备有它独特的优点。Thisequipmenthasafewadvantageallit’sown.所得结果与测量值相吻合。Theresultsobtainedfittheexperimentalvalues.“我们已定义了度量m的质量单位。”Wehavedefinedmassunitstomeasurem.PartII翻译本文采用常压微反评价、程序升温还原和硫化技术及原位红外（CA）技术，对不同活性组分的催化剂的变换活性

6、及性能进行了表征测试，实验结果表明：单独的硫化钴或硫化钼都具有耐硫变换活性，单独硫化钴作为活性组分的催化剂活性优于单独硫化钼作为活性组分的催化剂，并且二者之间具有明显的协同效应。PartIII翻译Adsorptionistheadhesionofatoms,ions,ormoleculesfromagas,liquid,ordissolvedsolidtoasurface.Thisprocesscreatesafilmoftheadsorbateonthesurfaceoftheadsorbent.Thisprocessdiffersfromabsorption,in

7、whichafluid(theabsorbate)permeatesorisdissolvedbyaliquidorsolid(theabsorbent).Adsorptionisasurface-basedprocesswhileabsorptioninvolvesthewholevolumeofthematerial.Thetermsorptionencompassesbothprocesses,whiledesorptionisthereverseofit.Adsorptionisasurfacephenomenon.Similartosurf