YD 5057-1998.Computer Network System Engineering Design Temporary Provisions of Intra-Provincial Posts and Transportation Dispatch.1总则1.0.1为省内邮运调度计算机网络系统...
YD 5046-1997.Temporary Design Specifications for Installation of Unattended Power Supply Equipments in Optical Fibre Cable Telecommunications Projects.1总则1.0.1YD 5046适用于光缆...
YD 5008-1995.Specifcations for M :ail Transfer Post Project。1.总则1.0.1为了贯彻国家的基本建设方针政策和邮政发展技术政策，提高工程设计质量,实现工...
YD 5065-1998.Code for Design of Public EDI Network Engineering.1总则1.0.1为了使公用电子数据交换业务网工程设计有所依据，特制定本规范。1.0.2YD 5065适用...
YD 5067-1998.Acceptance Specifcation of Equipment Installation Engineering for digital mobile communication(TDMA).1总则1.0.1YD 5067是数字移动通信(TDMA)设备安装工程的施...
YD 5071-1998.Code for Acceptance of Service Network for Fax Store and Forward.1总则1.0.1YD 5071是传真存储转发业务网安装工程施工质量检验、随工检验和竣工验...
YD 5072-1998.Provisional supervision Specification for Telecommunications Conduit Cable Channel Engineering.1总则1.0.1为规范通信管道和电缆通道工程建设施工监理工...
YD 5073-1998.Provisional Specifications for construction Supervision of Telecommunications Buildings.1总则1.0.1为 加强电信楼建筑安装工程质量管理，控制工期和工...
QB/T 5511-2020.Lithium-ion battery charger for electric bicycle.1范围QB/T 5511规定了电动自行车用锂离子蓄电池系统充电器的产品分类和型号命名、要求、试...
QB/T 5417-2020.General technical requirements for electric bicycles plastic components.1范围QB/T 5417规定了电动自行车用塑料零部件的术语和定义、产品分类、要...
