【英文标准名称】:DigitalVideoBroadcasting(DVB)-DVBinteractionchannelforcableTVdistributionsystems(CATV)(EndorsementoftheEnglishversionETS300800:1998asGermanstandard)
【原文标准名称】:数字视频广播(DVB)系统.电缆TV分配系统(CATV)的DVB交互频道
【标准号】:DINETS300800-2000
【标准状态】:现行
【国别】:德国
【发布日期】:2000-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电视传输;电视;电视信号;通信;数字电视;数字信号;数字广播;电视广播;相互作用;声传输;数字视频广播;数字视频广播;综合业务数字网络;电信;电信;远程通信
【英文主题词】:Digitalbroadcasting;Digitalsignals;Digitaltelevision;DVB;Interactive;ISDN;PSTN;Soundtransmission;Telecommunication;Telecommunications;Television;Televisionbroadcasting;Televisiontransmission;Vis
【摘要】:ThedocumentisthebaselinespecificationfortheprovisionofinteractionchannelforCableTV(CATV)networks.ThesolutionsprovidedhereforinteractionchannelforCATVnetworksareapartofwidersetofalternativestoimplementinteractivesforDVBsystems.
【中国标准分类号】:M74
【国际标准分类号】:33_170
【页数】:1P;A4
【正文语种】:德语


Product Code:SAE ARP1947
Title:Dendrite Arm Spacing of Structural Aircraft Quality D357 Aluminum Alloy Castings, Determination and Acceptance of
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This document covers the recommended practice for determining the acceptability of the dendrite arm spacing (DAS) of D357-T6 aluminum alloy castings required to have tensile strength not lower than 50,000 psi (345 MPa).To apply this method, at least two coupons used for DAS measurement and tensile testing shall be attached to the casting in locations as defined by the cognizant engineering organization.Areas of the casting which require DAS control must be accessible for surface DAS measurements.