由于m= 1-0.820.6 14 代入(2)式得M=3m1+ 0.63 0×0.8c hy0.6 2 再代入(1)式得 M 14 3 又由 M 得 2 ≈4.47mo 3再代入(1) 式得 c m c m M mv u 7 2 3 14 0.8 0.6 0 0 =  = = 又由 2 2 1 c u M M o − = 得 0 2 2 0 2 0 4.47 7 2 1 3 14 1 m m c u M M        = − = − 由于 1 / 1 0.8 0.6 0 2 0 2 2 m m v c m m o = − = − = 代入(2) 式得 0 0 0 3 14 0.6 3 m m M = m + =