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Noun:
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(KNO3) used especially as a fertilizer and explosive
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用作名詞 (n.)
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Early Chinese scientists discovered that they could make an explosive substance by mixing sulphur, charcoal and saltpeter.
前面的中國大生物醫學會發現把硫黃，木碳和硝石結合在一同就可以創作出就可以爆破的東西。
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往上信息內容獨門創作方法，受巨著權保養，抄襲必究
海詞辭典，十六年企業
美
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