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通过对回采面利用局扇进行辅助通风，改善回采面通风条件，增加供风量，减少进回风巷之间漏风，实现回采面安全高产。
Through the use of bureau fans on the mining face to assist ventilation, improve ventilation conditions in the mining face, increase the amount of air supply, reduce air leakage between the return airways and achieve safe and productive mining faceings.