二者的浓度受通风速率的影响都很大。
But all of the organics concentrations were affected by ventilation rate.
应用因次分析法推导出表征巷（隧）道火灾烟流滚退距离变化规律的通用无因次表达式，该表达式包含影响滚退距离的火源热释放速率、通风风速、巷道倾角和形状等因素。
A non-dimensional expression, which shows the general variation of the backflow distance of smoke and hot gases during a roadway or tunnel fire, was derived through dimensional analysis.
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