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IEC 61835-1998 使用12.65mm(0.5in)磁带的螺旋扫描数字视频盒式录音系统D-5格式

作者:标准资料网 时间:2024-05-18 11:42:47  浏览:9297   来源:标准资料网
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【英文标准名称】:Helical-scandigitalcomponentvideocassetterecordingsystemusing12,65mm(0,5in)magnetictape-FormatD-5
【原文标准名称】:使用12.65mm(0.5in)磁带的螺旋扫描数字视频盒式录音系统D-5格式
【标准号】:IEC61835-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:盒式磁带;盒式录象带;娱乐电子学;磁带记录;规范(验收);视频记录;数字录制技术
【英文主题词】:Acousticsignals;Cassettes(magnetictapes);Digitalrecordingtechnique;Digitalsignals;Dimensions;Electricalengineering;Entertainmentelectronics;Helicalscanrecording;Magnetictaperecordings;Magnetictapes;Parameters;Properties;Recording;Specification(approval);Videocassettes;Videorecording;Videosignals;Videotaperecordings;Videotapes
【摘要】:ThisInternationalStandarddefinestheelectricalandmechanicalcharacteristicsofequipmentwhichpermittheinterchangeabilityof12,65mmcassettescontainingdigitallyrecordedcomponentvideoprogrammes.Itspecifiesthecontent,formatandrecordingmethodofthedatablocksformingthehelicalrecordsonthetapecontainingvideo,audioandassociateddatausingthe12,65mm(0,5in)typeD-5cassettes.Inaddition,thisstandardspecifiesthecontent,formatandrecordingmethodofthelongitudinalrecordcontainingtrackinginformationforthescanningheadassociatedwiththehelicalrecords,aswellasthelongitudinalcueaudioandtimeandcontrolcodetracks.Onevideochannelandfourindependentaudiochannelsarerecordedinthedigitalformat.Eachofthesechannelsisdesignedtobecapableofindependentediting.Thevideochannelrecordsandreproducesacomponenttelevisionsignalinthe525-linesystemwithaframefrequencyof29,97Hz(hereinafterreferredtoas"525/60system")and625-linesystemwithaframefrequencyof25,00Hz(hereinafterreferredtoas"625/50system").
【中国标准分类号】:M71
【国际标准分类号】:33_160_40
【页数】:295P.;A4
【正文语种】:英语


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【英文标准名称】:StandardSpecificationforFlexiblePolymericFoamSheetInsulationUsedasaThermalandSoundAbsorbingLinerforDuctSystems
【原文标准名称】:用作管道系统吸热吸声衬垫的柔性聚合物泡沫薄片的标准规范
【标准号】:ASTMC1534-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C16.22
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:管道;柔性;泡沫材料;绝缘;衬套(机械组件);薄板材;声音;热的
【英文主题词】:closedcell;ducts;flexible;foam;HVAC;insulation;opencell;soundabsorbing;thermalinsulation
【摘要】:1.1Thisspecificationcoversthecomposition,dimensions,andphysicalpropertiesofflexibleunfacedfoamsheet,usedtoinsulateinteriorsurfacesofHVACducts,plenumsandequipmentusedforthedistributionofconditionedairwithatemperatureofupto250176;F(121176;C).1.2HVACducts,plenumsandequipmentsystemstypicallyoperatebetweenatemperaturerangeof50176;Fto150176;F(10176;Cto65176;C)andaredesignedtomeetbuildingcoderequirementsofmaximumtemperaturesof250176;F(121176;C).1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.ThevaluesgiveninparenthesesareinSI,andareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:Q25
【国际标准分类号】:91_100_60
【页数】:4P.;A4
【正文语种】:



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