n.選礦
The paper introduces wastewater treatment technology of Sillimanite beneficiation. 本文對(duì)介紹硅線石選礦廢水的處理工藝進(jìn)行了論述。
Lime is widely used in the beneficiation or recovery of non-ferrous metal ores. 石灰廣泛運(yùn)用在有色金屬礦的選礦或者還原上。
