“primary standard of length”的概念、定义、翻译、参考文献-科学参考

单词	primary standard of length
释义	primary standard of length Encyclopedia 工学米定义释 primary standard of length长度计量基准以现代科学技术所能达到的最高准确度保存和复现长度单位“米”的整套装备。
随便看	exchange correlation exchange correlation energy exchange-correlation energy exchange correlation energy functional exchange-correlation energy functional exchange correlation functional exchange-correlation functional exchange-correlation hole exchange correlation kernel exchange-correlation kernel exchange correlation potential exchange Coulomb interaction exchange coupling exchange current density exchange degeneracy exchange diffusion exchange electron-spin resonance exchange encryption exchange energy exchange ET exchange extraction exchange force exchange half life exchange half-life exchange half time

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