“primary standards of national defense”的概念、定义、翻译、参考文献-科学参考

单词	primary standards of national defense
释义	primary standards of national defense Encyclopedia 工学（计量）释 primary standards of national defense国防最高计量标准在国防军工系统中具有最高计量特性，由国家国防科技工业计量主管部门考核合格并授权在国防军工系统中进行量值传递的测量标准。
随便看	tree-of-heaven bark tree of Pythagoras tree of strategies tree peony tree peony garden tree peony root bark Tree-plangting as an Obligatory Duty tree planting auger tree-planting day tree-planting problem tree/plant management tree polymer tree pool tree processing tree proof tree proteome tree representation tree ring Tree-ring Dating tree root trees Trees and Crows in Autumn by Wang Hui trees breeding for forest carbon sink trees breeding for stress resistance Trees damage by snow

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。