The paper holds that the source of gas outburst danger consists in the gas-rich area possessing thermal coal, high-potential gas as well as fragmentized coal body.
英
美
- 认为突出危险源是存在于采矿活动中的具备发动煤与瓦斯突出的高势能瓦斯与破碎煤体混合的瓦斯富积区。