The logic behind this is that the upward movement of the belayer during a fall helps to absorb some of the forces and having freedom of movement allows the belayer to move away from falling objects.

 
  • 背后逻辑说明坠落时确保者往上的动作帮助吸收掉一些冲击力,也让确保者自由躲开掉落物体。
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