A:风阻就是风的阻力。一般车辆在前进时,所受到风的阻力大致来自前方,除非侧面风速特别大,不然不会对车辆产生太大影响,就算有,也可通过方向盘来修正。风阻对汽车性能的影响甚大。根据测试,当一辆轿车以80公里/时前进时,有60%的耗油是用来克服风阻的。风阻系数Cd是衡量一辆汽车受空气阻力影响大小的一个标准。风阻系数越小,说明它受空气阻力影响越 A: Wind resistance is the resistance of the wind. In general, the resistance of the wind received by the vehicle generally comes from the front unless the side wind speed is particularly large, otherwise it will not have much impact on the vehicle. If there is, it can also be corrected through the steering wheel. Wind resistance has a significant impact on vehicle performance. According to the test, 60% of fuel consumption is used to overcome drag when a car is traveling at 80 km / h. The drag coefficient Cd is a measure of the size of a car affected by air resistance. The smaller the drag coefficient, indicating that it is more affected by the air resistance