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Pressure-relief mechanism and strata-pressure response of surface L-shaped well hydraulic fracturing for thick hard roofs in deep extra-thick coal seams

Nguồn Nature 地球环境9 ngày trước
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Pressure-relief mechanism and strata-pressure response of surface L-shaped well hydraulic fracturing for thick hard roofs in deep extra-thick coal seams · Hoàn Vũ Thông Giám