outburst prone coal seam
突出煤层
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Drivage in coal seam prone to outburst
突出煤层掘进
High Outburst Coal Seam
突出煤层
low permeability outburst coal seam
低透气性突出煤层
Outburst Coal Seam
突出煤层
Coal Outburst
煤的挤出
gas and coal outburst
石门揭煤
gas control and coal outburst prevention
煤与瓦斯突出防治
outburst coal briquette
突出煤型煤
Outburst Seam
突出煤层
rock or coal outburst
冲击矿压
11-2 Coal Seam
11-2煤层
6 coal seam
六煤层
abnormal coal seam thickness
异常煤厚
accumulated total coal seam thickness
累计煤层总厚
Adjacent Coal Seam
近距离煤层
allochthonous coal seam
移置煤层
angle of coal seam
煤层倾角
artificial coal seam roof
煤皮假顶
B coal seam
B煤层
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