采用一维非恒定流方程模拟地下排水管网内的水流，并给出泵站、闸门、淹没出流管道等排水系统的处理方法。
The flow in the drainage pipe network is simulated by one-dimensional unsteady flow theory, and the calculation of the pumping stations, the water gates and submersed pipes is indicated.
用非恒定流数学模型对系统的输水管道、配水管道、调节池进行分析。
Conveyer and service pipes and regulating pond of the system was analyzed through unsteady mathematic model.
在液体管道瞬变流计算中，传统的拟恒定摩阻模型不能准确描述瞬变流的真实物理现象。
The traditional quasi - steady friction model can not be accurately described the real transient problems in transient pipe flow.
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