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基准标准物质
释义
基准标准物质
Encyclopedia
工学
〔化学计量基本概念〕
释
primary reference material
基准标准物质
在化学测量领域中用作原级(基准)测量标准的物质。是化学测量溯源体系的顶层物质基础,也是有证标准物质的最高等级。
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oceanic water mass change
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Ocean modeling and simulation
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