File:Detail-47841.jpg
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A pneumatic caisson in the process of being sunk into the ground. The caisson is cylindrical, made of steel, and has a large airlock at the top for workers to enter and exit.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:12, 13 December 2023 | | 1,024 × 1,024 (1.06 MB) | Ai (talk | contribs) | A pneumatic caisson in the process of being sunk into the ground. The caisson is cylindrical, made of steel, and has a large airlock at the top for workers to enter and exit. |
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