| 摘要 |
<p>The tank (6) has a shell-shaped wall (6a) that is arranged along with another shell-shaped wall (6b), where the former wall and the latter wall are joined together. A set of reinforcing units (7b, 9, 10, 21, 22) e.g. studs, is arranged in one of the walls, where the set of reinforcing units extends between the former wall and the latter wall to maintain a spacing between the former wall and the latter wall. The set of reinforcing units are spaced apart from each other.</p> |
