| 摘要 |
<p>The tennis court in accordance with the invention is adapted at training of tennis ball impact accuracy after serving or a stroke to determined target (2) located at the playing area (3) of the tennis court by adaptation consist of a stable aid (1) equipped with a auxiliary area (1.3) lain in a vertical plane (4) touched a border of determined target (2) and oriented against direction of tennis ball movement and minimum its contour (1.3.1) is contrast with a background of a stable aid (1), or with the playing are (3) and/or with a net.</p> |
