通过设计实例，介绍矿井通风设备选型设计的现状以及BDK对旋式通风机房布置的一些特点。
This paper introduces the present design of coal mine and some characteristics of BDK in ventilation station.
相关专家坚信尽管他们在矿下有通风设备和水源，当矿井塌陷时，大量的水流入井底，也正是矿工被困的地方。
Experts insisted they had ventilation and water of a sort-when a mine caves in, water flows to the bottom, where the workers were believed to be trapped.
调查人员说，由于断电，矿井内的通风设备停止运行，矿井内瓦斯积聚。
Investigators say gas accumulated during a power outage that shut down the mine's ventilation system.
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