GY/T 142-1999.Technical specifications for VHF and UHF terrestrial television broadcasting monitoring.1范围GY/T 142规定了米波(VHF)、分米波(UHF)地面电视广播的测量项...
GA 219-1999.Fire extinguishing agent-Protein foam concentrates and fluoroprotein foam concentrates.以动物蛋白或植物蛋白质的水解浓缩液为基料，并含有适当的稳...
GY/T 141-1999.Specifications and methods of measurement on scramble/descramble system used for analog TV signal in CATV systems.1范围GY/T 141规定了有线电视模拟电视信号加...
YD/T 937-1997.Confidentiality system for audiovisual services.1范围一个秘密系统由两部分构成:数据的保密机制或加密处理和密钥管理子系统。YD/T 937规定...
YD/T 936-1997.Multipoint communication service protocol specification for audiographics and audiovisual conferencing sevice.1范围YD/T 936规定由MCS提供者到对等MCS提供者传...
YD/T 927-1997.Multipoint communication service for audiographics and audiovisual conferencing service definition.1范围YD/T 927规定了用于音像和视听会议业务的多点通信...
YD/T 740-1995.1范围YD/T 740规定了市内通信线路用电缆分线盒的分类、技术要求、试验方法、检验规则和包装、运输、贮存等的基本规则。YD/T ...
GA 216.1-1999.The security product components for computer information systems Part 1: Security function evaluation criterion.1范围GA 216.1规定了计算机信息系统安全专用...
GY/T 140-1999.Specifications and methods of measurement on system outlets (5~1000MHz) used for CATV systems.5.2.2.2测量步骤a先不接被测部件，直接连通测量系统，调整...
GA 214.15-2005.Specification for resident population management information-Part 15:The standard of data exchange for resident population management information.1范围GA 214.15规定...
