green vitriolɡri:nˈvitriəl短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 n.绿矾 Utilizing iron filling and waste liquid to react, thus we can retrieve the green vitriol, reduce the acidity, finally have the clear liquid and achieve the retrieval and utilization purpose. 利用铁屑与废液反应,从而回收硫酸亚铁,降低酸度,上清液达到回用目的。 chemyq