SIS SS-ISO 2922-1986 Acoustics - Measurement ofnoise emitted by vessels on inland waterways and harbours《声学 内河航道和港口船只所排放噪声的测量》.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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