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

单词	national measurement primary standard
释义	national measurement primary standard Encyclopedia 工学国家测量基准释 national measurement primary standard国家测量基准为了定义、实现、保存或复现量的单位或一个或多个量值，用作参考的实物量具、测量仪器、标准物质或测量系统。又称国家计量基准或国家基准。
随便看	proofs of God's existence proof test of ceramics proof-theoretic proof-theoretical proof-theoretic ordinal proof-theoretic semantics proof theory proof tree proof without words pro-oncogene propa 1,2 diene propa-1,2-diene propachlor propadiene Propaganda propaganda effects propaganda models propaganda motivation Propaganda Movement of Philippines propaganda of agitation propaganda of integration propaganda skills propaganda war propagated error propagating chain end

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。