这些锯齿型沟槽能够间路面上的水排走，从而减少轮胎与路面之间的水分。
These indentions in the concrete divert excess water from the surface to reduce the amount of water between tires and the runway or road.
冬季来临，轮胎容易老化，与路面的摩擦系数降低，出现抓地不稳的状况。
Winter, tire easily aging, lower coefficient of friction with the road surface, the situation appears unstable grip.
作为汽车与路面的支承和传递单元，它的力学特性直接影响汽车的运动性能。
As a supporting of automobile and road surface and transmission unit, its dynamics characteristic influences the movement performance of the automobile directly.
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