“national measurement primary standard”的概念、定义、翻译、参考文献-科学参考

单词	national measurement primary standard
释义	national measurement primary standard Encyclopedia 工学国家测量基准释 national measurement primary standard国家测量基准为了定义、实现、保存或复现量的单位或一个或多个量值，用作参考的实物量具、测量仪器、标准物质或测量系统。又称国家计量基准或国家基准。
随便看	short circuit current of hydropower station short- circuit earthing switch short-circuit ratio Short Comment on the Preface to the Orchid Pavilion in Ji Ziwei's Collection Short Comments by Zhang Zhao Short Comments Written by Chen Yixi Short Comments Written by He Chao short cone hydrocyclone short connecting beam short count Short crater shortcut shortcut division short cut fiber shortcut key shortcut method shortcut test short day plant short-day plant short distance assisted walking race of Summer Special Olympics short distance scale short-distance transport short division short dominant feeding technology short duration burst

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