ore-dressing machinery选矿机械
ore-dressing practice选矿作业
ore-dressing tailings选尾矿
ore e dressing选矿
Ore-Dressing Test选矿实验;选矿试验
iron ore mineral dressing铁矿选矿
ore-dressing选矿
Ore-dressing agent选矿剂
ore concentration dressing富集作用
N（名词） the first stage in the extraction of a metal from an ore in which as much gangue as possible is removed and the ore is prepared for smelting, refining, etc 选矿 (Also called mineral dressing, mineral processing)