NF X02-002-1986 Fundamental standards-Units and symbols- Practical realization of the definitions of some important units《基本标准 单元和符号 部分重要单元的实际实现》.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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