Aiming at difficulties in supporting dilatable soft rock roadway, control method was put forward to control effectively deformation and failure of dilatable soft rock roadway in Hongmiao Colliery.
针对红庙煤矿膨胀性软

存在的难题,给出
针对性的
控

,并在实践中得到
验证,有效地控
红庙煤矿膨胀性软

的变形和破坏。


组织。
而再再而三
词短语,意为“突然暴力


单独的读头可以非


