 |
| |||
| air connection; spout; air hole; air room (при камерностолбовой системе); ventilation breakthrough; air fracturing | |||
| vent crosscut (MichaelBurov); ventilation crosscut (MichaelBurov) | |||
| vent cross cut (Jewelia) | |||
| ventilation connection | |||
| вентиляционная сбойка: 1 Phrase in 1 Thematik |
| Bergbau | 1 |