Coal and gas outburst is one of the major disaster accidents in coal mines, which is a serious threat to the coal mine production safety.
煤与瓦斯突出是煤矿重大灾害事故之一，严重威胁着煤矿的安全生产。
In China coal industry, coal mine gas accident is currently the biggest disaster, which has become a major constraining factor in production of coal mine safety.
在我国煤炭行业中，瓦斯事故是当前煤矿生产的最大灾害，目前已成为制约煤矿安全生产的主要因素。
Gas is one of the sources which are the major disaster such as coal mine and underground transport hub.
瓦斯是发生在诸如煤矿、地下交通枢纽等领域的重大灾害的根源之一。
Disaster and prevention of gas is the major challenge of coal mine production faced.
矿井瓦斯灾害与防治是煤矿生产面临的重大难题。
Exactly four years ago, 171 people died in a similar disaster at Dongfeng Mine, another major colliery of the Longmei Group.
就在四年前，在同属龙媒集团的东风煤矿一次相似矿难中，171人死亡。
Exactly four years ago, 171 people died in a similar disaster at Dongfeng Mine, another major colliery of the Longmei Group.
就在四年前，在同属龙媒集团的东风煤矿一次相似矿难中，171人死亡。
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