' B. U: C% i( H# L + X1 f+ A" @. J3 w7 ySomething I don't understand1 Y9 C1 \$ l' l
For front wheel drive, the friction direction is reversed when braking the car. when driving, the friction point to the front direction, and reverses to back direction when braking the car.
Something I don't understand9 i+ [7 P; ]- l! A1 X' `1 w, i
For front wheel drive, the friction direction is reversed when braking the car. when driving, the friction point to the front direction, and reverses to back direc ... 4 L# m8 e Y: `: B- ix007 发表于 2011-11-3 12:25