结果表明，无过载离心叶轮内部流动既没有出现分离，也没有明显的尾迹区存在。
The result shows that there exists neither flow separation nor apparent wake flow within an non-overload centrifugal impeller.
针对农用泵(运行工况多变且出口无流量调节阀)的特点和低比转速离心泵的轴功率在大流量区运行易过载的特性，提出了无过载离心泵的概念。
Based the brake horsepower characteristics of low specific speed centrifugal pump and the required features of pumps used for agriculture, the concept of non - overload centrifugal pumps is conceived.
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