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Time optimization of gas drainage from floor crossing boreholes in soft low-permeability coal seams of Yangquan mining area
Time optimization of gas drainage from floor crossing boreholes in soft low-permeability coal seams of Yangquan mining area
2019
Guo Chunsheng
Xu Chao
Ge Yong
Geng Dewang
Hu Siyi
Gong Ke
Keywords:
Drainage
low permeability
Mining engineering
Coal mining
Borehole
Geology
Correction
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