口香糖衣领倾角向下就内，外表面的每一个齿，但上升之间的牙齿。
The gum collar dips downwards on the inner and outer surface of each tooth but rises between the teeth.
当再次按钮点动滑齿柱转齿环和滑齿套因弹簧上升复位。
When the button is pointed again the slide tooth column, the rotating tooth ring and the slide tooth sleeve return because of spring.
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