| 摘要 |
<p>A bottle has grooves (22, 23) formed at vertically opposite ends of each column (12), and the grooves (22, 23) extend in the circumferential direction of the bottle. Vertically opposite ends of each column (12) have circumferential end edges, and the end edges of the columns (12) are in contact with circumferentially opposite ends of the grooves (22, 23). The construction suppresses local deformation at the columns (12).</p> |
