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mine fire control by clay grouting
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mine fire control by clay grouting
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工学
矿内火灾防治
释
mine fire control by clay grouting
灌浆防灭火
将适宜粒度的固体惰性材料与水混合形成两相悬浮液,借助自然压头(压力、压强)或机械压头,沿专设的管路或钻孔压送至煤矿井下用以防火或灭火的技术工艺。
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four coins problem
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four-component instructional design
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four conics problem
four co-ordinates of art criticism
Four Corners
four corners analysis
Four-counties and Six-towns
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four-current
four-current density
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