“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	total order total ordered set total ordering total organic carbon total organic carbon (TOC) total ossicular replacement prosthesis total output total output of services in support of agriculture, forestry, animal husbandry and fishery industries total ozone column concentration total payoff total permutation total perspective total phosphorus and total nitrogen measuring instrument in seawater total phosphorus in water total pollutant emission control system total pollutant load limits of water function zone total Pontryagin class total population of a city total pore volume total positivity total-power receiver total-power telescope total predicate total pressure total pressure distortion

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。