 |
| системы инертных газов: 31 phrases in 15 subjects |
| Astronautics | 3 |
| Aviation | 3 |
| Drilling | 1 |
| Electronics | 2 |
| Energy industry | 3 |
| Facilities | 1 |
| Metallurgy | 2 |
| Nautical | 4 |
| Oil / petroleum | 4 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Public utilities | 1 |
| Technology | 3 |
| Thermal engineering | 1 |
| Transport | 1 |