利用火灾区域模拟基本原理和使用方法，对扑救难度较大的船舶机舱火灾烟气运动进行了研究分析。
A zone fire model is used to stimulate the fire and predict the smoke movement in a ship engine room.
电缆沟火灾蔓延迅速，高温有毒烟雾积聚，火灾扑救难度大，一旦发生火灾将造成严重的经济损失和人员伤亡。
The spreading of cable groove fire makes the poisonous smog of high temperature collect and it can cause great economic and human loss.
随着高层、大型建筑物的规模日益扩大，其火灾危险性和扑救难度也不断增加，因此，对火灾探测系统性能的要求也越来越高。
With the enlargement of scale of high and large buildings, their fire fatalness is more and more dangerous. It is more and more difficult to save life and property in the building.
随着高层、大型建筑物的规模日益扩大，其火灾危险性和扑救难度也不断增加，因此，对火灾探测系统性能的要求也越来越高。
With the enlargement of scale of high and large buildings, their fire fatalness is more and more dangerous. It is more and more difficult to save life and property in the building.
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