... alluvial fan冲积扇；扇形地；扇状地 centrifugal fan离心式风扇；离心式鼓风机 axial fan轴流式通风机；轴流式风扇；轴两扇风机 ...
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当该离心式风扇开始及停止运转时，该挡片开启及闭合，以防止气流逆流。
When the operation of the centrifugal fan starts or stops, the washers open and close to prevent the airflow from backwards flowing.
利用所述贮气槽可提高气流的增压效果，进而提高离心式风扇的散热能力。
The inventive air storage groove can improve the pressurize effect of airflow, to improve the heat emission ability.
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