curtain ring

常见例句

• You can control the motor moving left and right on the curtain staff to drive the window curtain close or open eadily by pressing the button of the controller only.
  使用时，只需轻轻一按遥控器或线控器按钮，控制器即指挥电机在滑杆上左右运动，电机通过窗帘环驱动窗帘开闭。
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