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public measurement standards in chemistry
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public measurement standards in chemistry
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工学
〔化学计量基本概念〕
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public measurement standards in chemistry
化学社会公用计量标准
经中国县级以上地方人民政府计量行政部门批准,作为统一本地区化学成分量、物理化学特性量等的单位或量值的依据,在社会上实施化学计量监督并具有公正作用的化学计量标准。
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element hypergenic mobility
elementide
element innovation
element locally zero
element mass matrix
element migration
element mobility
element nucleosynthesis
element of a block design
element of a matrix
element of an analytic function
element of arc
element of area
element of a set
element of a space
element of a spread
element of best approximation
element of city planning
element of contact
element of eclipse
element of finite order
element of geometry
element of infinite height
element of infinite order
element of information exchange
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