Besides deciding challenges, Hawk-Eye also offers various statistics, like serve direction and placement, shot comparisons and player movement tracking information.
除了确认挑战有效与否，鹰眼还提供各种统计数据，如发球方向和落球点、击球比较和球员移动路径。
To promote the serve speed, strength, control serve change, route of placement is updates' women's volleyball serve skill tactics' trend.
提高发球速度、力量和控制发球路线落点的变化是当今世界女排发球技、战术的趋势。
Serve mostly to weakness but vary the placement and spin some. A 20% variation is enough to keep opponent guessing.
发球主要发往对手的弱点，但是偶而也要变换落点和旋转，只要有20%的变化就可以让对手难以捉摸。
Stalemate segment plays a very unstable, scoring in a huge difference between win and lose game. 2 Wang Liqin's Serve placement is relatively simple, mainly on tables, mainly within the centre.
相持段发挥很不稳定，得分率在胜负场差别巨大。2王励勤发球落点比较单一，主要以台内中路为主。
By concentrating on strong and repeatable mechanics, good placement, and spin, you can develop a second serve that helps you play points on your terms.
依靠有力的和可重复的技巧，良好的落点、旋转，你可以改进你的二发使你发挥应有的水平。
By concentrating on strong and repeatable mechanics, good placement, and spin, you can develop a second serve that helps you play points on your terms.
依靠有力的和可重复的技巧，良好的落点、旋转，你可以改进你的二发使你发挥应有的水平。
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