In addition, the components in the invention do not contact with any other objects, thereby avoiding component friction loss and protecting the components from being damaged.
此外，本发明中的元器件不与任何物体接触，避免元器件的摩损，保护元器件不被破坏。
In addition, the components in the invention do not contact with any other objects, thereby avoiding component friction loss and protecting the components from being damaged.
此外，本发明中的元器件不与任何物体接触，避免元器件的摩损，保护元器件不被破坏。
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