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Keyword [Y type ventilation]
Result: 21 - 23 | Page: 2 of 2
21.
Study On Coupling Disaster-Causing Characteristics Of Coal Spontaneous Combustion In Goaf Of Goaf Face With Roadway Along Goaf With High Gas
22.
Research On The Key Technology Of Top Cutting Pressure-relieve And High Water Filling And Gob-side Entry Retaining In High Gas Mine
23.
Study On Gas Treatment Technology Of Upper Protective Layer Working Face Of Close Coal Seam Group
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