动力马达：提供开门与关门的主动力，控制门扇加速与减速运行。

Motor power:open the door and provide the initiative, door control acceleration and decelertion operation.

youdao

动力马达：提供开门与关门的主动力，控制门扇加速与减速运行。

Motor power:open the door and provide the initiative, door control acceleration and decelertion operation.

youdao