瓦斯爆炸事故严重威胁着煤矿的安全生产和矿工的生命安全,在井下搭建密闭墙是防治瓦斯爆炸事故的一种行之有效的方法。
Gas explosion Accidents imperil the safety of producing and miners' life badly. Erecting seal walls is an effective solution to prevent gas explosion.
前言: 对“板闭和杠子墙”临时密闭进行了介绍。
The paper introduces temporary airtights with board close and beam wall.
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