The work theory of the Roto-Jet pump is very specific and it has very simple construction and smooth performance curve and cheap maintain.

旋喷泵工作原理比较特殊，结构简单，性能曲线稳定，维护方便。

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It is shown after analysis that the efficiency of roto-jet pump is higher than theefficiency of multistage pump and express pump when it operates in the region of low dis-charge and high lift.

通过对提高某化工装置反应器进料泵扬程两种方法的分析对比、实验研究，提出短叶片偏置设计法是提高低比转速离心泵扬程和效率的有效方法。

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