 |
| supply ventilation: 29 phrases in 11 subjects |
| Construction | 8 |
| Firefighting and fire-control systems | 1 |
| General | 4 |
| Measuring instruments | 2 |
| Nautical | 2 |
| Non-governmental organizations | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Shipbuilding | 4 |
| Ventilation | 4 |
| Weapons of mass destruction | 1 |