Some way into its path - perhaps around the 10 m mark (or at about the position of the wall of defenders) - the ball's velocity dropped such that it entered the laminar flow regime.
在球运行路径的某一点(10米处，或人墙的位置)球的速度下降，使空气在球体表面形成较稳定的层流。
2
Based on geometrical switch of velocity obstacle, reachable avoidance velocity has been proposed, thereby ensure latency obstacles in the path of movement.
通过遇障速度的几何变换产生可达避障速度，从而确定运动路径上潜在的障碍物。
3
Conventional acceleration and deceleration control method plans velocity in single segment of machining path, so it can not meet the need for high speed.