 |
| |||
| duct; ventilation duct | |||
| air duct; air pipe; conduit; fan tubing; vent tube; ventilating pipe; ventube | |||
| vent pipe; air conduit | |||
| Wetterlutte: 1 phrases, 1 sujets |
| Exploitation minière | 1 |
|
| |||
| duct; ventilation duct | |||
| air duct; air pipe; conduit; fan tubing; vent tube; ventilating pipe; ventube | |||
| vent pipe; air conduit | |||
| Wetterlutte: 1 phrases, 1 sujets |
| Exploitation minière | 1 |