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基准物质
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基准物质
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standard chemicals
基准物质
用来直接配制或标定容量分析中标准溶液的物质。又称标准物质。
Chemistry
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primary reference material
基准物质
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global design
global differential geometry
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global dimension of a ring
global dimension of rings
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Global Ecology and Oceanography of Harmful Algal Blooms
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