IEC 60510-2-4-1988 卫星地面站用无线电设备的测量方法第2部分:分系统测量第4节:上、下变频器

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【英文标准名称】:Methodsofmeasurementforradioequipmentusedinsatelliteearthstations;part2:measurementsforsub-systems;sectionfour:up-anddown-converters
【原文标准名称】:卫星地面站用无线电设备的测量方法第2部分:分系统测量第4节:上、下变频器
【标准号】:IEC60510-2-4-1988
【标准状态】:现行
【国别】:国际
【发布日期】:1988
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC102
【标准类型】:()
【标准水平】:()
【中文主题词】:无线电设备;测量技术;差转机;卫星通信链路;电气工程;测量;定义;地面站;子系统;无线电台;卫星通信;特性;变频机
【英文主题词】:
【摘要】:Coversupanddown-convertersinsatelliteearthstationtransmittersandreceivers,dealingwithautomaticgaincontrol,amplitude/frequencycharacteristics,group-delay/frequencycharacteristics,amplitudemodulation/phasemodulationconversionfactor,
【中国标准分类号】:V80
【国际标准分类号】:33_060_30
【页数】:34P;A4
【正文语种】:英语


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【英文标准名称】:Brazing-Imperfectionsinbrazedjoints
【原文标准名称】:钎焊.钎焊接头的缺陷
【标准号】:ISO18279-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC44
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;焊接接头;分类号;表面偏差度;焊接工艺;不规则性;空腔;试样;弯曲试验;缺陷与故障;分类系统;裂纹;尺寸偏差;剪切试验;硬钎焊接头;钎焊;评定;抗拉试验;硬度测量;变化;试验;形状变化;铜焊;软钎焊连接;分类;焊接工程;破坏试验;夹杂物
【英文主题词】:Bendtesting;Brazing;Brazingjoints;Cavity;Classification;Classificationnumbers;Classificationsystems;Defects;Definitions;Destructivetesting;Dimensionaldeviations;Evaluations;Flaws;Hardnessmeasurement;Inclusions;Irregularities;Shapevariations;Sheartests;Solderedjoints;Solderings;Surfacedeviation;Tensiletests;Testspecimens;Testing;Variations;Weldedjoints;Weldingengineering;Weldingprocesses
【摘要】:ThisEuropeanStandarddetailsaclassificationofimperfectionsthatcanoccurinbrazingjoints.Inadditionguidanceisprovidedonqualitylevelsandsuggestedlimitsforimperfectionsaredetailed.Forrequirementsnotcoveredbythisstandard,referenceistobemadetoothersources,e.g.statutoryregulations,codesofpracticeandtechnicaldeliveryconditions.Noinformationisgivenonhowimperfectionsaretobeassessedinindividualcasesbecausethisdependsontherequirementsfortheparticularbrazedjoint.Theseimperfectionsarenotalwaysdetectablebytheuseofnon-destructivetestingalone.Thestandardcoversonlyimperfectionsthatcanoccurinconnectionwithbrazingwithouttheeffectofanyadditionalserviceloads.Onlythetype,shapeandpositionofsuchimperfectionsarecovered;noindicationisgivenoftheconditionsofoccurrenceorcauses.Forrequirementsforbrazedjointswhicharerelevantandessentialtotheparticularfunctionofthecomponent,referenceshouldbemadetotherelevantdocumentation,e.g.manufacturingdocumentsorproceduresheets.NOTEItisimportantthattheserequirementsbepreciselyprescribedandthatcompliancewiththembeverifiable.Compliancemaybeestablishedbytestingeitherthebrazedassemblyitselforatestpieceproducedundercomparableconditions.Therequirementsshouldbeestablishedandfullydocumentedbeforeanyclassificationisundertaken.ThisEuropeanStandarddoesnotlaydownrequirementsforacceptancelevelsforimperfectionssincethesewilldifferverymarkedly,dependingontheapplication,butitdoessuggestsomequalitylevelswhichmaybeofvalueintheabsenceofmoredetailedinformation.
【中国标准分类号】:J33
【国际标准分类号】:25_160_50
【页数】:24P;A4
【正文语种】:英语


【英文标准名称】:Furnitureremovalactivities-Furnitureremovalforprivateindividuals-Part2:Provisionofservice;GermanversionEN12522-2:1996
【原文标准名称】:搬家服务.私人搬家.第2部分:服务条款
【标准号】:EN12522-2-1998
【标准状态】:现行
【国别】:
【发布日期】:1998-08
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:传送服务;运输须知;人员;合同文件;定义;责任;质量;保障;承包条款;合同;服务设施;规范(验收);质量保证;家具;运输;运输;移动;合同同意;私人的;移动物品;搬家服务
【英文主题词】:Contractagreement;Contractdocuments;Contracts;Definition;Definitions;Furniture;Liability;Personnel;Privat;Provision;Quality;Qualityassurance;Removalgoods;Removalservices;Removals;Services;Specification(approval);Termsofcontract;Transport;Transportservices;Transportation;Transportationinstructions
【摘要】:
【中国标准分类号】:R12
【国际标准分类号】:03_080_30
【页数】:10P;A4
【正文语种】:英语