slice mining method 分层开采法
horizontal slice mining 水平分层采煤法
fully mechanized rapid slice mining 分层快速综采
slice mining and caving combination 分层开采与放顶煤相结合
slice-blasting mining 分层炮采
mining top slice 顶分层开采
·2,447,543篇论文数据，部分数据来源于NoteExpress
During mechanical longwall top coal mining, the gas permeability in top coal ahead of working face has bigger difference compared with slice mining due to the increase of mining height.
综放开采由于采高的加大，导致采场前方顶煤中瓦斯渗透性与分层开采有较大的差异。
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