Rock filled sumps-- Some homes at the bottom of swales or low points are natural water collection sources.
摇滚充满污水坑-在洼地或低点底部有些家庭是天然的取水来源。
Sumps use the weight of water and gravity to help soil's natural percolation.
污水坑使用水和重力的重量，以帮助土的自然渗透。
Flows in open pump sumps are complex movements with free surface.
开敞式水泵吸水池内流动是具有自由表面的复杂流动。
In order to improve the design of pump sumps, the CFD approach was employed to analyze the flow patterns and hydraulic performance.
为了改进泵站进水池设计，应用CFD技术对进水池内部流态和水力性能进行分析。
Trenches-- Trenches can also act as sumps or diversion pits that can aid soil in absorbing rain and runoff.
战壕-战壕也可以作为污水坑坑或转移，以助吸收雨水径流的土壤。
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