英语词汇chrome alum怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	chrome alum
释义	chrome alumn.（名词） A violet-red crystalline compound, CrK(SO₄) ₂·12H ₂O, used in tanning, as a mordant, and in photography. 铬矾，硫酸铬钾：一种紫红色的结晶化合物，CrK(SO₄) ₂·12H ₂O，作为腐蚀液用于制革和照相
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