This implies a pump head-flow characteristic that falls continuously from shut valve to duty point by at least 10%.

这意味着，一个水泵头流量特性属于不断从关闭阀门到责任点，由至少10 %。

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Centrifugal pump characteristic curve on the efficiency of the highest point known as the design point, a pump at the point corresponding to pressure head and flow of work under the most economic.

离心泵特性曲线上的效率最高点称为设计点，泵在该点对应的压头和流量下工作最为经济。

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There exists a saddle type zone in the hydraulic moment curve of axial-flow pump blades which corresponds to the saddle zone of discharge-head characteristic curve of the pump.

轴流泵叶片水力矩随流量变化的关系曲线存在一个马鞍区，并与流量-扬程曲线的马鞍区相对应。

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