利用不同的叶轮直径，泵能够调整到最佳的操作点。
By use of different impeller diameters the pumps can be optimally adjusted to the operation point.
泵的扬程大小取决于泵的结构如叶轮直径的大小，叶片的弯曲情况等、转速。
Pump lift pump depends on the size of the structure such as the impeller diameter the size of the blades bend, and so on, the speed.
通过切削叶轮缩小叶轮直径，改变离心泵实际性能，降低噪音和电机电流达到稳定长周期运转的目的。
The diameter of the impeller is reduced through cutting impeller to improve the factual performance, reduce noise and motor current, so that it can be run steadily for a long duration.
叶轮的外径为72毫米，进流处直径为24毫米。
The impeller has an outer diameter of 72mm and an inlet diameter of 24mm.
叶轮切割指数与直径比的确存在着某种关系，也就是切割指数随着切割后的直径比的变化而变化。
There is a relationship between the trim exponents and impeller diameter ratio, namely the exponents vary with the ratio.
叶轮切割指数与直径比的确存在着某种关系，也就是切割指数随着切割后的直径比的变化而变化。
There is a relationship between the trim exponents and impeller diameter ratio, namely the exponents vary with the ratio.
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