“primary reference material”的概念、定义、翻译、参考文献-科学参考

单词	primary reference material
释义	primary reference material Encyclopedia 工学〔化学计量基本概念〕释 primary reference material基准标准物质在化学测量领域中用作原级（基准）测量标准的物质。是化学测量溯源体系的顶层物质基础，也是有证标准物质的最高等级。 Chemistry ＞分析化学＞标准物质＞释义 primary reference material基准物质＞分析化学＞标准物质＞释义 primary reference material一级标准物质
随便看	valence angle valence band valenceband valence band spectra valence band structure valence bond valence bond configuration interaction(VBCI)method valence bond perturbation theory(VBPT)method valence bond self-consistent field(VBSCF)method valence bond structure valence bond theory valence-bond theory valence controllable semiconductor valence correspondence valence crystal valence deflection angle valence electron valence electron approximation valence fluctuation valence instability valence isomerism valence-matching principle valence nucleon valence number valence of an atom

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。