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

单词	national certified reference material
释义	national certified reference material Encyclopedia 工学〔化学计量基本概念〕释 national certified reference material国家标准物质经国家计量行政部门批准，用于统一量值的标准物质。
随便看	paternalistic leadership paternity identification paternity index Paternity Leave Paterson path path algebra path algebra of a quiver Pathans path class path coefficient path component path computation element，PCE path connected path-connected path connectedness path-connectedness path-connected set path connected space path-connected space path connectivity path curve path decomposition path delay path dependence

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。