non-pillar mining的意思|示意
无煤柱开采
non-pillar mining的网络常见释义
无煤柱开采 ... long pillar mining 长柱分段开采 non-pillar mining 无煤柱开采 roadway pillar mining 巷柱式开采 ...
non-pillar mining相关短语
1、 non pillar continuous mining 无间柱连续采矿
non-pillar mining相关例句
The article analyzes how the hanging arch is caused during non-pillar sublevel caving in Jingtieshan mine, in order to provide a reference for rational mining organization and resources utilization.
本文着重分析了镜铁山矿无底柱崩落法悬顶问题，为合理安排矿山生产，合理利用矿产资源，提供了参考依据。
Cut-off grade method has been used to control the ore drawing in non-pillar sublevel caving mining both in and outside China.
采用无底柱分段崩落采矿法，国内外一直采用截止品位放矿法来控制出矿。