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This paper introduced the energy saving principle of air intake prerotation adjustment and the application area and method of air intake prerotation regulator.

介绍了节能原理及应用范围和使用方法。

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This paper introduces the main energy saving technologies of centrifugal pump.And the author proposes a new energy saving technology which is called prerotation regulated by the inlet guide vane.

本文介绍了离心泵节能主要技术,并提出了前导叶节能技术。

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