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saltpeter
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saltpeter
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理学
硝石
释
saltpeter
硝石
天然产的硝酸钾。化学式KNO3。又称钾硝石、火硝或土硝。
Chemistry
>无机化学>无机化学基本概念与无机化合物>释义
saltpeter
硝石
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Freedman,Michael H.
Freedman theorem
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Freedom of Information Act
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