所以常常容易因为溢流井与逃气道位置设计不当，使得铸件产生气孔的缺陷。

So often easily design overflow and air vent at inappropriate location, making casting generated gas hole.

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泄洪道，分洪道，溢流槽天然或人造的泄洪渠或泄洪管道，以引导洪水绕过或远离城市中心或人口稠密地区。

Floodway; high-flow diversion Natural or man-made bypass channels or conduits that redirect flood waters around or away from urban centers or area of high population density.

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项目位于北京西山创业园区，主要材质有：钢板道牙、砾石、白色混凝土、溢流池等。

Business park project is located in Western Hills of Beijing. The main material are: Steel Road, teeth, gravel, white concrete, overflow pools.

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