论文部分内容阅读
手法相似 张怡宁此球是在发加转球.其与不转球的区别在于触球的部位不同。从图2-3中可见,发加转下旋球是触球的中下部,用力向下摩擦。反之.如果发不转球,则是推、弹球的中部且不加摩擦。 球速相似 在发转不转球时。一般而言,发下旋球时,由于旋转的作用,球向前运行的速度相对较快,而发不转球时,由于没有旋转,故球的运行速度慢而飘。因此,如果有意识地加快发不转球的出手速度,使两种旋转的运行速度更为接近,将令对手更加难以判断,张怡宁在此方面是较为出色的。
Similar tactics Zhang Yining The ball is made in the increase transfer ball. The difference with the non-transfer ball is different parts of the ball touch. Can be seen from Figure 2-3, send plus spin down the ball is the bottom of the ball touch, forced down friction. Conversely, if you do not turn the ball, it is pushed, the middle of the pinball and no friction. Sphere speed is similar to the transfer does not transfer the ball. In general, the hair is spun down, due to the role of rotation, the ball forward speed is relatively fast, and do not transfer the ball, because there is no rotation, so the ball slow speed and drift. Therefore, if you consciously speed up the shots do not transfer the ball to make the two rotating speed closer to the opponent will make it more difficult to judge, Zhang Yining is better in this regard.