“international recommended values of standard frequencies”的概念、定义、翻译、参考文献-科学参考

单词	international recommended values of standard frequencies
释义	international recommended values of standard frequencies Encyclopedia 工学时间频率计量释 international recommended values of standard frequencies国际标准频率推荐值由国际计量委员会（CIPM）推荐的一组电磁辐射标准频率值。为包含实际复现米定义和秒的次级表示在内的应用而设立。
随便看	nonferrous metals industry nonferrous metals industry in the world non-ferrous metal slag nonferrous smelting flue gas non-Fick effect Nonfigurative non-film radiographic non-destructive testing non financial assets non-financial enterprise deposits non-finite set non foaming solid drink non-focal manifold non forced mixer non-formal non-formaldehyde thermoplastic resin plywood non-formal education non-formalized theory non-Fourier heat conduction non-fragile control non-Fraunhofer component non-Fredholm integral equation non-free set non-freezing cold injury non-full matrix non-functionality

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