“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	Lewis Bernstein Namier Lewis blood group substance Lewis Carroll Lewis Cass Lewis complex Lewis Henry Morgan lewisite Lewis model Lewis Mumford Lewis Nkosi Lewis number Lewis pair catalysis polymerization Lewis Randall rule Lewis-Randall rule Lewis relationship Lewis rule Lewis rule of fugacities lewis shale gas play Lewis structure Lewis theory of acid-base Lewis theory of acids and bases Lewis theory of electron pair Lewis turning point lewis turning point Lewis Wickes Hine

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