The smoke control model is an important tool to have a smoke control research.
就防烟楼梯间及前室正压送风系统区域烟控模型的算法进行了介绍。
The utility model discloses a tool for a smoker to control the dust release, composed of a paper smoke-filtering bag and a smoke guiding device controlling the flow direction of the smoke emission.
一种吸烟者用以控制其烟尘释放的器具，由纸质滤烟袋和控制烟气排放流向的导烟装置所组成。
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