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

单词	national chemical measurement standard
释义	national chemical measurement standard Encyclopedia 工学〔化学计量基本概念〕释 national chemical measurement standard国家化学计量标准由国家计量行政部门考核、批准，具有确定的量值或量值范围和相关联的不确定度，用于实现化学成分量、物理化学特性量等的单位或量值，检定或校准其他化学计量标准或工作计量器具，对社会实施计量监督并具有公正作用的一类国家计量标准。
随便看	projective measure projective mensuration projective method projective metric projective metric element projective metric space projective minimal surface projective model projective module projective morphism projective multiplier projective normal projective normalization projective n-space projective object projective object of a category projective parameter projective pencil of lines projective plane projective plane crossing number projective plane curve projective plane dissection projective point projective point ranges projective principal normal

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