ETSI ETR 239-1996 Transmission and Multiplexing (TM) List of Documents Relevant to SDH Transmission Equipment《传输和复用(TM) 与SDH传输设备有关的文件目录》.pdf

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ITU-R RAPPORT M 766-2 FRENCH-1990 Feasibility of frequency sharing between the GPS and other services《全球定位系统和其他服务之间的频率共享的可行性》.pdf

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