| 摘要 |
<p>A games racket particularly for tennis has a stringing system in which separate holes are used for main- and cross- strings and the holes alternate between notional parallel planes 1, 2 each side of the plane 3 of interlaced main- and cross- strings and equidistant therefrom. In the regions of proximity of main- and cross-strings the holes P1, P2, Q1, Q2, W1, W2, X1, X2 for adjacent non-interlacing strings are aligned in a plane perpendicular both to the plane of interlaced main- and cross- strings and to the tangent to the head frame portion at this point. <IMAGE></p> |
