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单词 potash
释义 potash/ˈpɒtæʃ/n. an alkaline potassium compound, usu. potassium carbonate or hydroxide 钾碱(常为碳酸钾及苛性钾) [17th-c. pot-ashes from Dutch pot-asschen (as POT1, ASH1): originally obtained by leaching vegetable ashes and evaporating the solution in iron pots]
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