因为松,轮 子在螺栓上晃动,会损坏螺栓上的丝扣。更严重的,会磨出一道深深的沟。刹车时,车子的惯力会切断所有的螺栓。
因为松,轮 子在螺栓上晃动,会损坏螺栓上的丝扣。更严重的,会磨出一道深深的沟。刹车时,车子的惯力会切断所有的螺栓。
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