The canaries in coal mining areas may be an animal threatened by climate change.
煤矿区的金丝雀就可能是一种正受气候变化威胁的动物。
The theoretical formulas are developed and applied to the prediction of the rock mass displacements and deformations due to underground mining by pillar-and-room method in mountain areas.
在实测资料统计分析基础上,建立了高陡山区房柱法地下开采岩体移动变形预测分析模型,并给出了岩体变形破坏的极限值。
In view of above problems, the mining technology has been improved in Zhuyu mine areas by supporting with small wooden stand and opening stoping passage in the caving mining area.
针对以上问题,对竹峪金矿区采矿技术进行了改进,采用小木架支护法,在冒落采区中开辟回采通道,回采矿石。
应用推荐