The magmatic rock intrudes relative seriously in Wangying Colliery, rock-burst and gas outburst mainly take place near igneous rock wall.
王营煤矿的岩浆岩侵入比较严重，冲击矿压和瓦斯突出多发生在火成岩墙附近。
The magmatic rock intrudes relative seriously in Wangying Colliery, rock-burst and gas outburst mainly take place near igneous rock wall.
王营煤矿的岩浆岩侵入比较严重，冲击矿压和瓦斯突出多发生在火成岩墙附近。
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