they adopted a few measures such as improving fineness of grinding ores, increasing secondary cleaning, using additional typed reagent and so on, thus making the technical indexes raised markedly.
某铜矿通过对浮选工艺的技术改造:采取提高磨矿细度、增加二次精选及采用高效药剂等措施,使选矿技术指标得到了显着提高。