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依据紊流传质原理和通风网路理论分析了集中有害气体在通风巷道及通风网路中的传播规律，推导了网路中集中有害气体浓度分布的计算方法。
According to the principle of turbulence and mass transfer and the theory of ventilation network, the propagation of concentrated harmful gases in ventilation tunnel and ventilation network is analyzed, and the calculation method of concentrated concentration of harmful gases in network is deduced.