| 摘要 |
The present invention is a bottle (1, 2, 3, 4) that is formed from a synthetic resin material in a cylindrical shape having a bottom at one end, comprising: a plurality of circumferential grooves (15) that extend continuously around the entire circumference of a body portion (13) and are formed at a distance from each other in a vertical direction. The circumferential grooves (15) extend cyclically in a circumferential direction while undulating in the vertical direction when viewed from the side of the body portion (13) so as to form wave patterns, and the respective phases of circumferential grooves (15, 15) that are mutually adjacent to each other in the vertical direction are offset from each other. |
