2026年11月3日星期二
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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

출처 Nature 地球环境7일 전
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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 · 환우통감