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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
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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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optical spectrometer for rock & mineral analysis and test
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optical spectrum
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optical spectrum measurement method
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optical spintronics
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optical storage materials
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optical sun
optical surface
optical surface flaws
optical surface imperfection
optical surface roughness
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optical switching
optical switching integrated device
optical switching network
optical system
optical system design
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