采用牛顿迭代法来求解各未知节点的经济水压，进而得出各管段的经济水头损失、经济管径和水源二级泵站的经济扬程。

The Newton iteration method is used to solve the economic pressure on the unknown node, so as to calculate the economic head loss and economic pipe diameter of each section,.

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根据低扬程水泵装置的研究方法可以多样化的观念，提出了将泵站进水流道模型从水泵装置模型中分离出来单独进行水力损失测试的新方法。

Based on the theory of variety for researching a low head pump system, a new method to separate inlet conduit from pump system was put forward for measuring its hydraulic loss.

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