“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	Lane-Emden function lane indicator lane keeping assist/lane departure warning system lane management Lane of Courtesy Lanford Lanford Wilson LAN-free back-up Lang Langanqun Langao's Poems Langao Xian Lang Ba Langbolabang Si Langcang Jiang Langde Shangzhai Langemak crater Langer Langerhans' cells Langerhans cell，LC Langer,Susanne Langevin Langevin crater Langevin-Debye formula Langevin dynamics

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