 |
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| man lock (beim Caissonverfahren) | |||
| personnel air lock; personnel access hatch; personnel lock entrance; air lock; airlock | |||
| manway; emergency airlock; personal air lock; personnel airlock; personnel lock | |||
| |||
| personnel locks | |||
| Personenschleuse: 2 phrases in 1 subject |
| Construction | 2 |