“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	maintainer line in forage plants maintaining needling sensation maintaining stability maintain net energy maintain organizational image maintain organizational interests maintain organizational safety main technical standards for railway engineering design maintenance maintenance analysis procedure maintenance analysis procedure, MAP maintenance and management for green building planting maintenance and management of airport infrastructure Maintenance and Management of Irrigation Projects in Ancient China maintenance and management of plants maintenance and management of street trees maintenance and repair in water conservancy project maintenance and support vehicle maintenance business outsourcing maintenance capacity maintenance center maintenance charge maintenance cost maintenance cost, maintenance charge maintenance decision

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