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Application research on fixed-point sampling of negative pressure slag discharge for coal seam gas content determination
Jiao Jihong 1, Wang Yujie 1, Li Hui 2, 3, 4
1. Gas Institute of Pingdingshan Tianan Coal Industry Co., Ltd., Pingdingshan 467099, China ; 2. Safety Science and Engineering College of Henan Polytechnic University, Jiaozuo 454003, China ; 3. Coal safety production and efficient and clean utilization of the province to build collaborative innovation center, Jiaozuo 454003, China; 4. School of Urban Construction and Safety Engineering, Shanghai University of Applied Sciences, Shanghai 201418, China


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