要注意步法、挥拍的角度和击球动作的平稳。
Attention to footwork Angle of the racket smoothness of strokes.
选手在完成挥拍击球动作后，身体是否正面向前？
通过对击球瞬间挥拍速度与被击出的球飞出距离的关系进行了实验研究。
The relationship between the instant speed of swing during smash and the bounce distance of the ball hit were studied by experiment.
分析两种不同网球底线击球技术的握拍法、步法和引拍挥拍的运动轨迹，比较它们的技术特点及其生物力学特征。
Analyze the racket grasp style, footwork, and the course of lead and brandish of the two baseline drives respectively, and compare the techniques and bio-mechanical characteristics between.
热身时，专注于轻松的挥拍并注意看球，尤其是从球着地到击球点。
During the warm up, focus on swinging relaxed and watching the ball, especially after it bounces and all the way to the contact point.
若果真如此，那么为什么轻拍子不能以他的快挥速来匹敌慢挥速的重拍子，以产生同等的击球力量呢？
If this is true, won't a lighter racquet that is swung fast generate the same power as a heavier racquet that's swung more slowly?
随挥从球离开拍弦开始，向击球方向伸展。
The follow through starts right after the tennis ball leaves your strings.
因此第一步你需要把上半身转动到位，然后，你顺势展开肩部，挥拍击球。
The first step is to make a good upper-body turn, and then, when you uncoil your shoulders, swing out toward the target.
因此第一步你需要把上半身转动到位，然后，你顺势展开肩部，挥拍击球。
The first step is to make a good upper-body turn, and then, when you uncoil your shoulders, swing out toward the target.
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