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Based on effective pressure theory without air partition and jet flow theory, the theoretical model of airflow being ejected by serials-parallel air curtain was set up and analyzed the influencing factors through numerical simulation. Meanwhile, according to the condition that inverted air current and insufficient air volume in transportation laneway in some iron mines, the experiment on air flow being ejected by serials-parallel air curtain was carried out through contrast experiment. Thedoi:10.1016/j.proeps.2009.09.026 fatcat:ln5ltuuvwvdvxp26rfda3cn36m