ONORM E 1100 Teil 1-1990 Standard voltages voltages over 1 kV lower than ~ 120V ~ 750V railway networks《标准电压 电压超过100千伏，低于~120 ~750V ，铁路网》.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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ITU-R RAPPORT M 739-1 FRENCH-1986 Interference due to intermodulation products in the land mobile service between 25 and 100 MHz《由于互调产物在陆地移动服务25和100 MHz之间产生的干扰》.pdf

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