ASAS △O G = Q G G AF, n=40m=k,AS m taF ∠F=k AS,=k,()4S AF k1==2k,(")2 一两侧轮胎 10/2510/25 t 2 s s s ' z s s ' z s t t s r ) S n m S k ( n m F k F n Q m k S m S n m S m S n S            = = = = = = = Om ' F z Fz r St Ss Q Q 2 Gu Gs m n GS Gu 2 s t ' z l ) n m 2k ( S F k = =   两侧轮胎