coal outburst 煤的挤出
coal and gas outburst 煤与瓦斯突出 ; 瓦斯突出 ; 煤与 ; 煤与瓦斯
gas and coal outburst 煤与瓦斯突出
coal-gas outburst 煤与瓦斯突出 ; 煤瓦斯突出
outburst coal 突出煤层 ; 和突出煤
gas outburst coal 瓦斯突出煤体
coal gas outburst 煤与瓦斯突出
outburst coal mass 瓦斯突出煤体
He said the coal fight with nature, there are many uncertain factors, currently the largest coal mine safety management of risk from gas outburst is the first.
他说，煤矿与大自然做斗争，存在很多不确定因素，目前煤矿安全管理最大的风险来自于瓦斯，防突是第一位的。
The prediction and forecasting of coal and gas outburst is a complicated and knotty problem.
煤与瓦斯突出预测预报是一个十分复杂而棘手的问题。
Coal and gas outburst is one of the most serious naturaldisasters to hamper the safety states during mining .
煤与瓦斯突出是制约煤矿安全生产最为严重的自然灾害之一。
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