GY 5055-2008.Code for installation and acceptance of PA conference system.1.0.1 为了规范扩声、会议系统安装工程施工，确保工程质量，制定本规范。1.0.2 本规...
GY/T 240-2009.Technical requirements and measurement methods of digital cable telev ision set top box.GY/T 240适用于有线数字电视机顶盒单向传输标准清晰度部分的基...
GY/T 239-2009.Operation and maintenance regulations for radio TV optical fiber transmission backbone network.GY/T 239规定了国家和省级广播电视光缆传输干线网运行维...
GA/T 933-2011.GC and GC-MS examination methods for monofluorocetate anion in biological samples.1范围GA/T 933规定了生物检材中氟乙酸的气相色谱(GC)和气相色谱-质谱...
GY/T 181一2002.Protecting distance of radio radiation interference from AC electrified railway to television relay broadcastingn and transposer station(s).GY/T 181规定了交流电气...
YD/T 1402-2005.The general technique requirement of IP network interconnection.1范围YD/T 1402规定了不同互联单位的IP网间互联的总体技术要求,包括网间互联模型...
YD/T 1401-2005.800MHz CDMA digital cellular mobile telecommunication network Wireless Intelligent Network (WIN) phase2:Test specification of Intelligent Peripheral (IP) equipment.1范...
YD/T 1400-2005.800MHz CDMA digital cellular mobile telecommunication network Wireless Intelligent Network (WIN) phase 2: Test specification of Service Control Point (SCP) equipment....
YD/T 1399-2005.800MHz CDMA digital cellular mobile telecommunication network Wireless Intelligent Network (WIN) phase 2:Test specification of Service Management Point (SMP) equipmen...
GY/T 124-1995.Specification and mothods of measurement on trunk amplifior used in CATV bystems.1.主I内容与适用范围GY/T 124规定了有线电视干线放大器的性能参数要...
