Results show that fixing the local exhaust facility over the lighting bridge, spout air supplying and bottom air returning is the best air conditioning method.

模拟结果表明，在灯光渡桥上加局部排风装置，喷口送风、下部回风为此类建筑的最佳空调方式。

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Q: Which method for keeping cool during the summer is better for fuel efficiency -- air conditioning or opening the windows?

问：夏季开车时，哪种保持凉爽的方法更省油，开空调还是开窗？

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Fixed screw between air-conditioning fan motor and fan blades loose and maintenance method of this fault is very simple, only needs to be fixed between the screw blades and motor re tighten.

空调外机风扇的电机和风叶之间的固定螺钉松脱，这一故障的维修方法十分简单，只需重新将扇叶和电机之间的固定螺丝重新扭紧即可。

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