| 摘要 |
<p>The racquet club consists of a striking area and a handle attached inside it. Two opposite zones of the striking element in relation to the handle have different physical material and/or surface characteristics esp. regarding elasticity, damping potential and/or surface structure. The position of the centre of gravity of the racquet can be altered by weights, which can be exchanged or adjusted. The ball striking club which has improved transmission of power during strokes of the ball attains a higher accuracy in the aim.</p> |
