这种结构的双速开关结构简单、传动效果好。

The double speed switch has the advantages of simple structure and good transmission effect.

youdao

采用双速行走，效率高；并可设定不同的刮集行程，适用范围广。

USES double speed, high efficiency, Can set different scraping set itinerary, wide application scope.

youdao

采用双速行走，效率高；并可设定不同的刮集行程，适用范围广。

USES double speed, high efficiency, Can set different scraping set itinerary, wide application scope.

youdao