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Chemistry
containing
标准物
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国际实物标准样本
master international sample
基本
标准物
质
primary standard substance
有证
标准物
质
certified reference material
标准参考物质
standard reference material
标准燃料的当量混合物
equivalent blends of standard fuels
标准物
质
RM reference material
标定碱溶液的基准物
alkalimetric standard
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