“时间频率计量”的概念、定义、翻译、参考文献-科学参考

单词	时间频率计量
释义	时间频率计量 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。
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