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为实现风机的兼用，提出通过划分防烟分区，使排烟风量与通风风量保持一致的方法。强调排烟工况下管网总阻力、漏风量均远大于通风空调工况，必须严格认真地计算。
In order to achieve the dual use of the fan, the method of dividing the smoke partition into the exhaust air volume and the ventilation air volume is proposed. It is emphasized that the total resistance and air leakage of the pipe network under the exhaust gas conditions are far greater than the ventilation and air conditioning conditions and must be calculated strictly.