国内卫星通信系统进网技术要求
Networking technical requirement for the Domestic(GSO/FSS) satellitecommunication system
检测标准
通信用多模光纤 第4部分:A4类多模光纤特性
Multimode optical fibres for telecommunication Part 4:Sectional specification for category A4 multimode fibres
通信用多模光纤 第3部分:A3类多模光纤特性
Multimode optical fibres for telecommunication-Part 3 :Sectional specification for category A3 multimode fibres
通信用多模光纤 第2部分:A2类多模光纤特性
Multimode optical fibres for telecommunication-Part 2 :Sectional specification for category A2 multimode fibres
通信用多模光纤 第1部分:A1类多模光纤特性
Multimode optical fibres for telecommunication Part 1:Sectional specification for category A1 multimode fibres
非广播盒式磁带录像机环境要求和试验方法
Environmental testing requirements and methodsfor non-broadcast video tape recorders
移动通信调频接收机测量方法
Methods of measurement for receivers employing F?E or G3E emissionused in the mobile services
声系统设备 第13部分:扬声器听音试验
Sound system equipment-Part 13:Listening tests on loudspeakers
声系统设备 第9部分:人工混响、时间延迟和移频装置测量方法
Sound system equipment-Part 9 : Methods of measurement for artificialreverberation,time delay and frequency shift equipment
声系统设备 第5部分:扬声器主要性能测试方法
Sound system equipment-Part 5 : Methods of measurement for main characteristics of loudspeakers
