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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 763-3 FRENCH-1990 Signal level variation due to multipath effects and blockage by ship-s superstructure in maritime mobile-satellite service lin.pdf
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IEC 61803 AMD 1-2010 Determination of power losses in high-voltage direct current (HVDC) converter stations with line commutated converters《修改件1 带有线换向转换器的高压直流(H.pdf
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IEC 61754-25-2008 Fibre optic connector interfaces - Part 25 Type RAO connector family《纤维光学连接器接口 第25部分 RAO型连接器系列》.pdf
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IEC 61676 AMD 1-2008 Medical electrical equipment - Dosimetric instruments used for non-invasive measurement of x-ray tube voltage in diagnostic radiology Amend.pdf
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IEC 61643-21-2000 Low voltage surge protective devices - Part 21 Surge protective devices connected to telecommunications and signalling networks Performance re.pdf
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62
IEC 61577-4-2009 Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 4 Equipment for the production of reference a.pdf
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LY T 2671.2-2017 《林业信息基础数据元标准 第2部分:基本属性》.pdf
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LY T 2413 403-2016 《 林业物联网 第403部分:对象标识符解析系统通用要求》.pdf
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LY T 1613-2017 《挤出成型木塑复合板材》.pdf
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