选矿厂

beneficiation

beneficiation【冶】;concentration【矿】;enrichment【矿】 生物

beneficiation method【矿】;preparation method【矿】

beneficiation machinery【矿】

mineral beneficiation【矿】;mineral dressing【矿】;ore dressing【矿】

beneficiation wastewater【环境】

beneficiation reagent【矿】

reagent for beneficiation