| 摘要 |
The container consists of a parallelepiped of cylindroconical body with a sealed top cover (2) and a filling aperture (3) in the cover with a lid (4). The aperture and lid are of truncated conical section and shaped to seal against one another when closed, and the lid locks in place by means of lugs (6) or spiral cams. The seal is provided by a flexible skirt (15) on the lid engaging with a groove (16) with an elastic joint round the inner surface of the aperture. |
