 |
| air -foam: 41 phrases in 15 subjects |
| Construction | 3 |
| Electronics | 2 |
| Energy industry | 2 |
| Firefighting and fire-control systems | 5 |
| Leather | 3 |
| Makarov | 2 |
| Metallurgy | 1 |
| Nautical | 2 |
| Occupational health & safety | 4 |
| Oil / petroleum | 3 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
| Security systems | 9 |
| Technology | 1 |