The process of chlorine leaching - purification - electrowinning for nickel extractioncopper residue is investigated.研究通过氯气浸出 - 净化 - 不溶阳极电积法生产电镍的工艺过程.The research results of recovering copper by electrowinning from conce...
His memory suffered irremediable damage.他的记忆力遭受了永久性的损伤。Is our defeat final and irremediable?我们是不是已经一败涂地、无可挽回了?The evil is now irremediable.这种不幸现在是无法补救了....