“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	nonresponse bias non response error non-response error nonresponse error non-result stop non-retaining constraint nonreturn rate non-return-to-zero non-return-to-zero change on one non-return-to-zero change on one, NRZ1 non-return-to-zero, NRZ non-reversibility nonreversible non-ribosomal peptide non-ribosomal peptide synthetase non-Riemannian geometry non-rigid body nonrigid rotator non-rotating origin non-rotating potential non-rotating white dwarf nonrotation non-rotational flow non-saddle set non sampling error

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