依照不同风向、风速及排烟口面积，设置五个火灾场景。
According to the different wind direction, wind velocity and smoke vent area, five fire scenarios are built.
研究了机械排烟口的布置和排烟量对火灾烟气排放有效性的影响。
The present study explores the effects of location of the mechanical exhaust vents and mechanical exhaust rate on the effectiveness of smoke extraction.
阀门关闭时，有高的气密性能，并有隔音作用，优于其它型式的板式排烟口。
Compared with other plate type flue gas exhausts, the utility model has the advantages that when the valves are closed, the utility model has high gasproof performance and soundproof function.
面板在温暖的天气下自动打开，提供通风，作为太阳能保护装置，也有助于声学，并且在打开时作为防火排烟口。
The lozenges provide ventilation by opening automatically in warm weather, act as solar protection, contribute to the acoustics and open as smoke vents should fire break out.
本论文通过正交实验从燃气压力、水流量、进风口面积和排烟口面积这四个因素中找出了影响强制平衡式燃气热水器的燃烧和热工特性的主要因素。
Through the orthogonal experiments, the author found out the major factor affecting the combustion and thermal characteristics from the gas pressure, water flow, air-inlet area and fume-exhaust area.
本论文通过正交实验从燃气压力、水流量、进风口面积和排烟口面积这四个因素中找出了影响强制平衡式燃气热水器的燃烧和热工特性的主要因素。
Through the orthogonal experiments, the author found out the major factor affecting the combustion and thermal characteristics from the gas pressure, water flow, air-inlet area and fume-exhaust area.
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