“secondary measurement standard”的概念、定义、翻译、参考文献-科学参考

单词	secondary measurement standard
释义	secondary measurement standard Encyclopedia 工学测量标准释 secondary measurement standard次级测量标准通过用同类量的原级测量标准对其进行校准而建立的测量标准。简称次级标准（secondary standard）。
随便看	countable space countable subadditivity countable subset countable sum axiom countable superadditivity countable support iterated forcing countable system countable transitive model countable union countable-valued logic countable weight countably additive countably additive algebra countably additive class countably additive family countably additive function countably additive measure countably compact countably compact set countably compact space countably continuous operator countably equivalent sets countably generated module countably Hilbertian space countably infinite

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。