防治煤与瓦斯突出
Coal and Gas Outburst Prevention
防治煤与瓦斯突出问题
Prevention against coal and gas blasting
煤与瓦斯突出防治
coal and gas outburst prominent controlling
gas control and coal outburst prevention
煤与瓦斯突出预测
Coal and Gas Outburst Prediction
prediction of coal and gas outburst
煤与瓦斯突出指标
coal and gas outburst index
煤与瓦斯延期突出
delay outburst of coal and gas
瓦斯突出预测
precdiction of gas-logged mass
瓦斯突出煤层
disturbed and logged coal seam
瓦斯突出与防治
gas outburst and controlling
煤与瓦斯共采
exploitation of coal and gas together
coal and gas co-mining
Coal Mining and Gas Extraction
simultaneous extraction of coal and methane
co-extraction of coal and gas
Coal and Gas Simultaneous Extraction
Simultaneous Extraction of Coal and Gas
煤与瓦斯高效共采
high-efficient exploitation of coal and gas