The Tnstitute of Exploration Techniques, Ministry of National Land
杨引娥.煤矿送料孔、通风孔及救援孔钻进技术[J].钻探工程,2013,40(3):60-65.杨引娥. Drilling Technologies of Feeding Hole, Ventilation Hole and Rescue Hole in Coalmine[J]. Drilling Engineering, 2013,40(3):60-65.
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