The computational procedure shows that the method and the measures of the paper have good convergence property and stability, which is independent of selecting of the initial free surface.
计算过程表明，本文方法及措施具有很好的收敛性与稳定性。且收敛性与自由面初始位置的选择无关。
2
The convergence of error brought about by the curvature of earth's surface obviously has no counterpart in free space.
地球表面曲率产生的误差是收敛的，显然，在自由空间没有类似的情况。
3
To improve the convergence speed of sliding mode variable structure control, a new nonlinear sliding mode surface is proposed.