“density metrology”的概念、定义、翻译、参考文献-科学参考

单词	density metrology
释义	density metrology Encyclopedia 工学密度计量释 density metrology密度计量对密度这一物理量所开展的计量活动。密度是表征物质内在特性的一个物理量，表示单位体积中所含有物质的质量，国际单位制中的单位为千克/米3。
随便看	Innokenti Mikhailovich Smoktunovsky Innokenty Fyodorovich Annensky Innokent’evtsy innomination contract Innovation innovation innovation adoption process innovation behavior mechanism innovation capability innovation capital innovation center innovation cluster innovation demonstration zone for sustainable development agenda Innovation Design Alliance of China innovation diffusion process innovation-driven innovation evaluation innovation for a sustainable future - the eco-innovation action plan innovation milieu innovation network innovation of ruralfinancial system innovation-oriented country innovation performance innovation platform innovation process

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