外扇发育远源浊积岩。
桌上除了一把很小的金钥匙外，什么也没有，爱丽丝首先想到的就是这或许可以打开大厅里的其中一扇门。
There was nothing on it but a tiny golden key, and Alice's first idea was that this might belong to one of the doors of the hall.
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。
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.
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