“metrology in the field of time and frequency”的概念、定义、翻译、参考文献-科学参考

单词	metrology in the field of time and frequency
释义	metrology in the field of time and frequency Encyclopedia 工学时间频率计量释 metrology in the field of time and frequency时间频率计量利用秒作为基本单位的测量及其应用的科学。是实现时间频率相关量单位统一、量值准确可靠的活动，计量学的分支之一。
随便看	Overnutrition overoxidize overpass overpass greening overpopulation overpotential overpotential; overvoltage overpressure overprint processing overproduction overradiation overranging over-recovery overrelaxation overrelaxation iterative method overrelaxation method overresonance over rest over-restriction of five phases overrich override control over-ring overripening overroasting overrunning clutch

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