【摘要】 本文通过理论及实践重新论证了离心泵的管路特性曲线。指出无论流量如何（阀门开度如何），管路特性曲线仅一条。说明了离心泵特性曲线与管路特性曲线的交点为离心泵在此管路中的最佳工作点，同时提出泵的管路利用率概念。更多还原

【Abstract】 In this pater,the charactristic curve was disscussed and proved again on the basis of theory and experiments. Auther sets up that there is only one system curve no matter how large the flow is, demenstrates that the cross point of the H～Q curve and the We～Q curve is the most efficient duty point of pump, and presents the concept of the system utilizating factor of pump.更多还原