英语词汇“alum”是什么意思，“alum”的读音、用法及例句翻译-烛光网

词汇	alum
释义	al·um AHD[ălʹəm] D.J.[ˈæləm]K.K.[ˈæləm]n.（名词） Any of various double sulfates of a trivalent metal such as aluminum, chromium, or iron and a univalent metal such as potassium or sodium, especially aluminum potassium sulfate, AlK(SO₄) ₂·12H ₂O, widely used in industry as clarifiers, hardeners, and purifiers and medicinally as topical astringents and styptics. 明矾，白矾：一种三价金属双硫酸盐，如铝、铬、铁和单价金属如钾或钠，特别是铝钾硫酸盐AlK(SO₄) ₂·12H ₂O，在工业上广泛用作沉淀剂、硬化剂和净化剂，医学上用作局部收敛剂和止血剂 Etymology语源 Middle English 中古英语 from Old French 源自古法语 from Latin alūmen 源自拉丁语 alūmen
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