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为什么下长坡禁止挂一二挡

更新时间: 2020-11-08 00:00:00     

下长坡禁止挂一二挡是因为挂一二挡的时候制动不足以限制车速下坡。如果挂了一二挡的话会越来越快,就会踩刹车,那么如果坡度较大时,长踩刹车会导致刹车系统过热最后失灵。轻则刹车系统磨损过快,重则容易造成事故。

关键词: 为什么 禁止 一二

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