What can be done if the overburden is hard rock?
如果剥离物是硬岩，怎么办呢？
The overburden strata movement is a complicated time and space process.
覆 岩层的运动是一个复杂的时空过程。
Overburden pressure has a strong influence on permeability and pore structure.
上覆地层压力对渗透率及孔隙结构特征影响很大。
High geothermal in the tunnel with thick overburden is unfavorable for tunnel construction.
深埋长大隧道高地温引起的热害将给隧道施工带来不利的影响。
In India's cities a traffic accident on one street will quickly overburden alternative routes.
在印度的城市，一个街道发生的交通事故将会迅速影响到可替代的路线。
The crusher is the key technology for semi-continued overburden stripping operation in open pit mine.
实现露天矿表土剥离采用半连续工艺的关键技术是破碎机。
The crusher is the key technology for semi-continued overburden stripping operation in open pit mine.
实现露天矿表土剥离采用半连续工艺的关键技术是破碎机。
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