They used good ventilation facilities in the building.
他们在建筑里使用了好的通风设备。
The mine local ventilation facilities incorporates a number of components, involving many types and reasons of the failure.
矿井局部通风设备系统包含多个组成部分，产生故障的理由和种类较多。
Mine local ventilation facilities failure is one of the main reason which leads to the accident of gas explosions in heading face.
矿井局部通风设备故障是导致掘进工作面较易发生瓦斯爆炸事故的主要理由之一。
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