所述叶轮包括叶片和轮毂，所述叶片与叶轮轮毂通过一弯拱形水平轴相连。

The impeller comprises a blade and a hub, wherein the blade is connected with the hub of the impeller through a level shaft in a shape of a bended arch.

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所述叶轮包括叶片和轮毂，所述叶片与叶轮轮毂通过一弯拱形水平轴相连。

The impeller comprises a blade and a hub, wherein the blade is connected with the hub of the impeller through a level shaft in a shape of a bended arch.

youdao