1.除去...的杂质,净化,提纯
1.to cleanse or purify something, especially by removing toxins
1.Depurating water quality ot bottled drinking natural mineral water and running manage
瓶装饮用矿泉水水质净化及运行管理
2.Discussion on the problem of lampblack depurating in catering trade
饮食业油烟净化有关问题的讨论