Developed marble karst in Dahongshan mine has led to a great deal of water burst in mine shaft and rapid groundwater table lowering, resulting in a large scale of surface subsidence.
大红山矿大理岩岩溶发育，由于突水造成井下大量涌水，同时引起地下水位急剧下降，引发了较大范围、较大规模的地面塌陷。
Tonglusha copper mine is a large mine with underground and surface combined mining system.
铜录山铜矿是露天与地下联合开采的大型铜矿。
Marble karst development in Da-hong-shan mine caused a great deal of water bursting in mine shaft, sharply lowering ground water and large scale of surface subsidence.
大红山矿大理岩岩溶发育，由于突水造成井下大量涌水，同时引起地下水位急剧下降，引发了较大范围、较大规模的地面塌陷。
The possibility is studied for construction of large-seale steel smelting workshop on the surface of mined-out area in Benxi Coal Mine.
本文研究了在本溪彩屯煤矿巳采区地表兴建大型炼钢车间的可行性。
The possibility is studied for construction of large-seale steel smelting workshop on the surface of mined-out area in Benxi Coal Mine.
本文研究了在本溪彩屯煤矿巳采区地表兴建大型炼钢车间的可行性。
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