因此，研究楼梯间及电梯井中烟气运动规律及其控制具有重要的实际意义。

Therefore, it is very important to study smoke movement and its control in the stairwell and elevator shaft.

youdao

因此，研究楼梯间及电梯井中烟气运动规律及其控制具有重要的实际意义。

Therefore, it is very important to study smoke movement and its control in the stairwell and elevator shaft. Smoke movement is very complex in the stairwell and elevator shaft.

youdao

因此，研究楼梯间及电梯井中烟气运动规律及其控制具有重要的实际意义。

Therefore, it is very important to study smoke movement and its control in the stairwell and elevator shaft. Smoke movement is very complex in the stairwell and elevator shaft.

youdao