General ventilation, local ventilation, task air supply, air distribution, air supply, exhaust.
全面通风，局部通风，岗位送风，气流组织，送风，排风。
It may supply the mathematical basis for analysis of mine ventilation.
为矿井风流非稳定的分析提供了数学基础。
Ventilation of the room is necessary to prevent a deficiency in oxygen supply!
使用场所要有良好的通风，避免供氧不足！
Ventilation of the room is necessary to prevent a deficiency in oxygen supply!
使用场所要有良好的通风，避免供氧不足！
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