“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	scale-invariant spectrum scale leaf scale length scale level scale mark scale measure scale model scalene scalene spherical triangle scalene triangle scalenohedron scalenus scale of a map scale of community unit scale of foreign capital utilization scale of geological survey scale of mineral resources scale of pasture water supply scale of segregation Scale on a Sundial of the Ming Dynasty scale operating of farmland scale pair scale parameter scale parameters scale preserving mapping

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