| 摘要 |
<p>The flask stopper is made of an inner capsule fixed on the neck and an external cap fitted on the capsule. The angular position of the cap relative to the capsule can be assured as the capsule (10) is fixed irreversibly on the neck (2). The cap (20) is fixed, to be movable, on the capsule. The position can be assured relative to the capsule and neck by penetration of an inner chimney part (18) inside the neck. Sealing between the capsule and cap is by a projection (23) inside the flask outlet channel (13).</p> |
