求翻译：压入式风筒的风速大于抽出式风筒的风速，大部分气流会随抽出式风筒排出，小部分风速较低的气流沿巷道不断向外扩散，在巷道内稀释净化是什么意思？

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Push-in wind turbine and the wind speed greater than pull-out, and the wind speed, the majority of air flow will be drawn along with air and exhaust, small parts lower wind speed of the air flow along alleyways and spreading out from the gallery, diluted purification

Presses in the type wind tunnel the wind speed to be bigger than extracts the type wind tunnel the wind speed, the majority of air currents can along with extract the type wind tunnel to discharge, the small partial wind speed low air current along the tunnel unceasing outward diffusion, dilutes the

Press-wind wind speed wind speed greater than exhaust duct, most of the discharged air with the exhaust duct, a small number of lower-speed airflow along the roadway continues to spread, in purifying diluted within the tunnel

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