“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	aerodynamic drag aerodynamic drag reduction by plasma aerodynamic effect of high speed railway tunnel aerodynamic equivalent diameter aerodynamic flutter of bridges aerodynamic force aerodynamic-force coefficient aerodynamic governing equations aerodynamic heating aerodynamic heating of lauch vehicle aerodynamic heating of reentry body aerodynamic instability aerodynamic isotope separation aerodynamic moment aerodynamic noise aerodynamic noise control aerodynamic particle size spectrometer Aerodynamic performance parameters of element aerodynamic resistance aerodynamics aerodynamics method aerodynamics of speech aerodynamics of vehicles aerodynamic test of ballistic missile and carrier rocket Aerodynamic Theory

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