alums的知识精选

“alums”可以造什么句,alums造句
"Themostimportantalumsarethoseofpotassiumsulfate(potassiumalum,orpotashalum,K2SO4*Al2(SO4)3*24H2O),ammoniumsulfate,andsodiumsulfate."Italsoplacesmoredesignersintheindustrythananyotherinstitution;alu...
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