Analyses and compares the diffusion regularity of fire smoke with and without screen doors when fire occurs in the middle or head of the train separately.
分析比较了地铁列车中部和头部分别发生火灾情况下有、无屏蔽门时烟气的扩散规律。
When a fire occurs at the center of the platform, both the smoke evacuation fan and the smoke blocking wall can effectively control the smoke.
当站台中部发生火灾时，只有机械排烟和挡烟装置配合使用才可以有效地控制烟气。
Do not hold cigarettes flame point upwards when smoking, it may occurs smoke simulate liquid flow into the filter.
抽吸时，请不要将烟头朝上，否则可能会成为烟弹部分浓缩液逆流的原因。
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