The feasibility of increasing open pit′s service life by deeping the final mining elevation, treating lean copper ore in the piles, recovering stope side ore is discussed.
论述了延长铜山口矿露天采场服务年限的必要性 ，探讨了通过延深最终开采标高、处理堆场贫铜矿、回收挂帮矿量等途径以达到延长露采服务年限目的的可行性。
The feasibility of increasing open pit′s service life by deeping the final mining elevation, treating lean copper ore in the piles, recovering stope side ore is discussed.
论述了延长铜山口矿露天采场服务年限的必要性 ，探讨了通过延深最终开采标高、处理堆场贫铜矿、回收挂帮矿量等途径以达到延长露采服务年限目的的可行性。
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