SNI 03-6386-2000 Specification of sounds level and reverberation times in buildings and houses (recommended design criteria)《建筑物和住宅的声音水平和混响时间的说明书（推荐的设计标准）》.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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