【英文标准名称】:TransmissionandMultiplexing(TM)-DigitaleRadioRelaySystems(DRRS)-Part1:Antennasforpoint-to-point(P-P)radiolinksinthe1GHzto3GHzbands;EnglishversionEN300631-1V1.1.1:1997-11
【原文标准名称】:传输和多路复用.数字无线电中继系统(DRRS).第1部分:在1GHz至3GHz频带中点对点无线电通信链路用天线
【标准号】:DINEN300631-1-1998
【标准状态】:现行
【国别】:德国
【发布日期】:1998-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:传输技术;中继无线电;无线电通信链路;天线;电气工程;定义;定向天线;多路传送;无线电天线;复接;无线电电路;数字无线电通信链路;分类;远程通信;电信;无线电工程
【英文主题词】:Antennas;Classification;Definition;Definitions;Digitalradiolinks;Directionalaerials;Electricalengineering;Multiplex;Multiplexing;Radioantennas;Radiocircuits;Radioengineering;Radiolinks;Relayradio;Telecommunication;Telecommunications;Transmissiontechnique
【摘要】:Thedocumentspecifiesrequiremenstfordirectionalantennasforpoint-to-pointradiolinksinfrequencybandfrom1GHzto3GHz.
【中国标准分类号】:M11
【国际标准分类号】:33_120_40
【页数】:18P.;A4
【正文语种】:德语


【英文标准名称】:Informationtechnology-Volumeandfilestructureofwrite-onceandrewritablemediausingnon-sequentialrecordingforinformationinterchange-Part4:Filestructure
【原文标准名称】:信息技术信息交换用非序列记录的写一次和可重写媒体的盘卷和文卷结构第4部分:文卷结构
【标准号】:ISO/IEC13346-4-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-04
【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/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Contents;Datamedia;Dataprocessing;Datarecording;Datastorage;Definitions;Filestructure;Informationinterchange;Informationtechnology;Read-onlymemory;Read-/writememories;Sequential;Specification;Structure;Volume;Writingproperties
【摘要】:ISO/IEC13346specifiesaformatandassociatedsystemrequirementsforvolumeandbootblockrecognition,volumestructure,filestructureandrecordstructurefortheinterchangeofinformationonmediabetweenusersofinformationprocessingsystems.Themediashallberecordedasiftherecordingofsectorsmaybedoneinanyorder.Note1-Themediumisnotrestrictedtobeingofonlyonetype;thetypeofmediummaybeeitherwriteonce,orreadonly,orrewritable,oracombinationofthesetypes.ThisInternationalStandardconsistsofthefollowingfiveParts:Part1:GeneralPart2:VolumeandBootBlockRecognitionPart3:VolumeStructurePart4:FileStructurePart5:RecordStructureAnnexA-ICBStrategies,ispartofthispartofISO/IEC13346.ThispartofISO/IEC13346specifiesaformatandassociatedsystemrequirementsforfilestructurebyspecifying:-theplacementoffiles;-theattributesofthefiles;-therelationshipamongfilesofalogicalvolume;-levelsofmediuminterchange;-requirementsfortheprocesseswhichareprovidedwithininformationprocessingsystems,toenableinformationtobeinterchangedbetweendifferentsystems;forthispurpose,itspecifiesthefunctionstobeprovidedwithinsystemswhichareintendedtooriginateorreceivemediawhichconformtothispartofISO/IEC13346.
【中国标准分类号】:L75
【国际标准分类号】:35_220_01
【页数】:62P;A4
【正文语种】:英语