Two smokeprevention stairs are in the building, one is next to the elevator and another is at the top of the southwest of the building.
本大楼设防烟楼梯两部，分别为电梯核心筒处一部，大楼西南侧顶端一部，是火灾发生后的逃生处。
2
Through the analysis of some problems in designing the smokeprevention and exhaust of high - rise civil building, this paper puts forward the author's opinions and relevant countermeasures.
本文通过对高层民用建筑防、排烟设计中一些问题的分析，提出了作者的看法以及采取的具体措施。
3
A survey by Hangzhou Center for Disease Control and Prevention shows that the scale of youth smoking is increasing and the age of people who smoke tends to be lower.