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air injection : 82 phrases in 27 subjects |
| Armored vehicles | 2 |
| Astronautics | 5 |
| Automated equipment | 5 |
| Automobiles | 11 |
| Aviation | 2 |
| Construction | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Energy industry | 3 |
| Engines | 1 |
| Gas processing plants | 9 |
| Geophysics | 1 |
| Makarov | 2 |
| Medical | 2 |
| Medical appliances | 1 |
| Metallurgy | 1 |
| Molikpaq | 2 |
| Nautical | 5 |
| Oil / petroleum | 1 |
| Oil and gas | 4 |
| Oil and gas technology | 2 |
| Rail transport | 1 |
| Shipbuilding | 1 |
| Technology | 13 |
| Thermal engineering | 2 |
| Transport | 2 |
| Winemaking | 1 |