Dawukou alluvial fan, located at the north end of the study area, has fine sediments, big fan area, flat slope and typical morphology.

而且本地区冲积扇在发育上也存在着较大的差异：北段的大武口冲积扇物质组成较细，坡度较平缓，面积较大。

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Boiler outfire events due to two completely different causes occurred on boiler No. 1 of Dawukou Power Plant and boiler No. 2 of Huaneng Beijing Power Plant have been analysed.

分析了大武口发电厂1号锅炉和华能北京热电厂2号锅炉两类原因截然相反的锅炉灭火事件。

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