青云翻译

烟早已被确认为单一的最危险因素在火和火有关的死亡的主要原因。在火灾产生的烟雾可以从火源迁移大的距离，并在高层火灾的情况下，浮力可以驾驶充满烟雾气体，通过竖井上部楼层，像楼梯和电梯槽有没有障碍抑制燃烧的气体向上流动。

Smoke has long been recognized as the single most dangerous element in a fire and a major cause of fire-related deaths. The smoke produced during a fire can migrate large distances from the source of the fire, and in the case of high-rise fires, buoyancy forces can drive smoke-laden gases to upper f

Smoke has long been recognized as the single most dangerous element in a fire and a major cause of fire-related deaths. The smoke produced during a fire can migrate large distances from the source of the fire, and in the case of high-rise fires, buoyancy forces can drive smoke-laden gases to upper f

Smoke has long been recognized as the single most dangerous element in a fire and a major cause of fire-related deaths, The smoke produced during a fire can migrate large distances from the source of the fire, and in the case of high-rise fires, buoyancy forces can drive smoke-laden gases to upper f

Smoke has long been recognized as the single most dangerous element in a fire and a major cause of fire-related deaths. The smoke produced during a fire can migrate large distances from the source of the fire, and in the case of high-rise fires, buoyancy forces can drive smoke-laden gases to upper f