求翻译：5.利用车的保险杠 、车厢等钢性部位与路边的天然障碍物(岩石 、大树或土坡)摩擦 、碰撞 ，达到强行停车脱险的目的 ，尽可能地减少事故损失 。是什么意思？

5. use of steel parts such as bumpers, compartments of the car and roadside natural obstacles (rocks, trees or slope) friction, collisions, achieve the aim of forcibly stop out of danger, reduce accident losses as possible.