SIS SS-ISO 612-1979 Road vehicles Dimensions of motor vehicles and towed vehicles Terms and definitions《道路车辆 机动车和拖车尺寸 术语和定义》.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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