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GB/T 38439-2019
Measuring specifications for methods to obtrusive light of outdoor lighting
室外照明干扰光测量规范 - 英文版
GB/T 34991-2017
12.5kHz TDMA channel based professional digital trunking communication system—Technical specifications for physical layer and data link layer of air interface
基于12.5kHz信道的时分多址(TDMA)专用数字集群通信系统 空中接口物理层及数据链路层技术规范 - 英文版
GB/T 34992-2017
12.5kHz TDMA channel based professional digital trunking communication system—Technical specifications for call control layer of air interface
基于12.5kHz信道的时分多址(TDMA)专用数字集群通信系统 空中接口呼叫控制层技术规范 - 英文版
GB/T 7436-1987
Specifications of TDM equipment operating on an analog telephone-type circuit for telegraph and lower-speed data
在模拟电话电路上开放电报及低速数据的时分复用设备技术要求 - 英文版

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