open pit mining meaning in English
露天采矿法
露天采戍
露天开采
明坑采矿法
明坑法
Examples
- Air interval deep - hole blasting in open pit mine
露天矿深孔空气间隔爆破 - Planning decision system for open pit mine and its application
露天开采规划决策系统及其应用 - Practice of ore dilution management in tiegukeng open pit mine
铁古坑露天矿矿石贫化管理的实践 - The open pit mine accounts for 3 / 4 of the output in 1973
这个露天矿的矿产量占1973年矿产量的3 / 4 。 - Practice of improving medium - length hole blasting effect in open pit mining
提高露天采矿中深孔爆破效果的实践