针对乒乓球机器人项目中乒乓球击打点位置及球到达击打点速度的预测问题进行探讨，分别建立了乒乓球飞行阶段的状态方程模型和乒乓球反弹过程的运动模型。

The prediction of the position of hit point of ping-pong and the velocity of the ball when reaching the hit point in the ping-pong robot project has been a research focus.

youdao

就像60码短跑计时一样，(棒球)打点及其通常估计球员平均击打率简直是19世纪运动观念的遗迹，当时就有数字显示比赛成绩才算可用。

Statistics like 60 yard dash times, RBIs, and batting average that are typically used to gauge players are relics of a 19th-century view of the game and the statistics that were available at the time.

youdao

就像60码短跑计时一样，(棒球)打点及其通常估计球员平均击打率简直是19世纪运动观念的遗迹，当时就有数字显示比赛成绩才算可用。

Statistics like 60 yard dash times, RBIs, and batting average that are typically used to gauge players are relics of a 19th-century view of the game and the statistics that were available at the time.

youdao