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释义
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Encyclopedia
工学
〔化学计量基本概念〕
释
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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。
Chemistry
>分析化学>标准物质>释义
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基准物质
>分析化学>标准物质>释义
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一级标准物质
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Western Central Atlantic Fishery Commission
Western Chamber
western classical furniture
western clothing history
Western Depot
Western Development Strategy
western elongation
Western equine encephalitis
western ethical thought
Western European gardens in the Middle Ages
Western European Plains
western European theological legal thoughts in the middle ages
western film
western flower arrangement
Western Fujian Han Opera
western garden elements
Western Ghats
western Guizhou and eastern Yunnan coalbed methane basin(group)
Western Han Dynasty
Western Han Dynasty Tombs at Fengqiyuan
western hemisphere
western henan coalfield
Western Hu
Western Huns branch
western intensification of ocean circulation
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