They provide friction, so the vehicle can grip the road, but some of the power supplied to the tyres is lost as heat.
汽车的抓地力正是因为轮胎的摩擦力提供的。但供给轮胎的能量一部分要消耗在生成的热量。
Friction drives the wheels to go on the road, so car can be moved. If wheels are trapped in the mud or sand, they can not go.
车轮一定要走在有摩擦力的路面上，这样车子才能行动。若车轮落入泥浆沙坑之中，那就动弹不得矣。
Winter, tire easily aging, lower coefficient of friction with the road surface, the situation appears unstable grip.
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。
Based on the tire magic formula model, the dynamic variation process of the tire optimal slip ratio and the maximum friction coefficient on the road with the vehicle velocity is researched.
基于轮胎的魔术公式模型，研究了轮胎在路面的最佳滑移率和最大摩擦系数随汽车速度的动态变化过程。
The relationship between tire vertical properties and friction coefficient of road has been found in the calculation, which can not be calculated with other modeling methods.
还发现轮胎的垂直特性与地面和轮胎之间的附着系数有关，这是以往建模方法所不能做到的。
For raising the anti friction property of road concrete, the use of silica fume instead of partial cement was tried. A systematic study on the properties of silica fume concrete was conducted.
为了提高道路路面混凝土的抗磨能力，采用硅灰代替部分水泥的方法，对硅灰混凝土的性能进行了较系统的试验研究。
Adhesive friction, as of a wheel on a track or a tire on a road.
使用冬季专用车胎在泥地或雪地上可增加附着摩擦力。
Adhesive friction, as of a wheel on a track or a tire on a road.
使用冬季专用车胎在泥地或雪地上可增加附着摩擦力。
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