GYJ 25-1986.GYJ 25规定厅堂扩声系统声学特性指标，适用于安装有扩声设备的各类厅堂和会议室，GYJ 25的测量方法和所使用的仪器，按“厅堂扩...
GA/T 967-2011.Guide for fire training safety.1范围GA/T 967规定了消防训练安全的术语和定义、总则以及体能训练、心理适应训练、技术训练和合成训练...
GA/T 963-2011.Specifications for setting road traffic safety publicity and education facilities.1范围GA/T 963规定了交通安全宜传教育设施设置的范围和要求。GA/T...
GYJ 34-1988.第1.0.1条本规 范适用于广播部门新建的单机输出功率50kW及50kW以上的中波、短波广播发射台工程设计。对于扩建、改建工程、单机输...
GA/T 960-2011.Specifications for highway traffic safety status evaluation.1范围GA/T 960规定了公路交通安全态势评估对象、评估指标及评估要求。GA/T 960适用于...
YD 2011-1993.一、总则为根治微波站,特别是高山微波站通过交流电力引线、微波天线系统以及其它各种进出站的缆线所引入的雷害，达到确保微...
YD/T 1290.1-2003.General technical requirements of peer to peer short message interworking between networks Part 1: Interworking between PSTN and PLMN.1范围YD/T 1290.1规定了固定...
YD 1169.2-2001.Requirement and Measurement Methods of Electromagnetic Compatibility for 800 MHz CDMA Digital Cellular Mobile Telecommunications System Part 2: Base Station and Ancil...
YD 1169.1-2001.Requirement and Measurement Methods of Electromagnetic Compatibility for 800MHz CDMA Digital Cellular Telecommunications System Part 1:Mobile Station and Ancillary Eq...
YD 1138-2001.Electromagnetic Compatibility Requirement and M easurement Methods for Fixed Radio Links and Ancillary Equipment.1范围YD 1138规定了固定无线链路设备及其辅助...
