摘要翻译精编.docx

摘要翻译

第一篇：摘要翻译Asia-PacificEconomicCooperation(APEC),asingleofficialeconomicforumatfirst,nowhasdevelopedintoaeconomiccooperationorganizationthatplaysanimportantroleintheworld.Asthecontinuallyexpandingofitsscale,itsoriginalseveralmembersnowbecome21.Itsimportancefortheworldhasbeengreatlyimproved,anditsinfluenceforinternationalregionaleconomiccooperationalsohasrapidlyexpanded.ThispapermakessomeintroductiontoAPEC,buttheemphasisofitistostudyAPEC’sinfluenceforinternationaltradeandtherelevantcountermeasuresanalyses.In2014,APECisheldagaininChina.ChinahasjoinedAPECfor25years,astheopeningofAPECmeeting,Chineseactualeconomicchangeinthis25yearsonceagainbecomesthefocusofattentionforscholars.Forthisissue,thispapertalksaboutChinesedevelopmentprocessinthis25years,andtheconcernedfocusandestablishmentofcountermeasuresin2014APECmeeting,sothattheimpactthatChina’sentryintoAPECmakesforChinesetradecanbegraspedasawhole.ForthedevelopmentsituationandexistingproblemsofAPECinrecentyears,thispaperofferssomerelevantsuggestions.Andaccordingtothemeetingcontentanddevelopmentsituation,thispaperalsoanalyzesAPEC’sfutureplanning.第二篇：摘要翻译要牵引变电所作为电气化铁道的供电电源，是铁路供电系统的重要组成部分，直接影响铁路行车安全。由于所内集中的电气设备较多，发生雷击时，很容易引起设备故障，进而影响铁道供电的安全性和可靠性。因此，可通过将避雷器安装在理想的位置，以防止雷击对牵引变电所内设备造成损害，保证牵引供电系统的安全可靠性。本设计采用EMTP(TheElectromagneticTransientsProgram,电磁暂态分析程序)应用软件，以哈大线牵引变电所为例，建立220kV牵引变电所仿真模型，对其雷电侵入波的特性进行仿真分析，比较雷击点、杆塔冲击接地电阻、避雷器安装位置等不同因素对牵引变电所内电气设备上过电压的影响，并根据分析结果确定避雷器的最佳安装点。根据基于EMTP的牵引变电所仿真模型，针对不同避雷器设置方案对雷电侵入波防护效果的模拟和分析结果，选择的最佳避雷器安装方案为：在变压器和互感器入口处均设置避雷器。Asthepowersupplyofelectrifiedrailway,tractionsubstationisanimportantpartoftherailwaypowersupplysystem,whichdirectlyaffectsthesafetyofrailwaytraffic.Becauseofthelargeamountofcentralizedequipmentintractionsubstation,itiseasytocauseequipmentfailurebylightning,andthenaffectthesafetyandreliabilityofrailwaypowersupplysystem.Therefore,theaTheElectromagneticTransientsProgrameequipmentintractionsubstationfromlightningstrikesandtoensurethesafetyandreliabilityoftractivepowersupplysystem.Thisde