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  • The two impellers are arranged at the lower end of the axle sleeve to ensure moderate air-draft amount.

    两片叶轮装在轴套下端，确保引风量适中。

    youdao

  • The two impellers are arranged at the lower end of the axle sleeve to ensure moderate air-draft amount.

    两片叶轮装在轴套下端，确保引风量适中。

    youdao

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