 |
| fuel- air mixture: 67 phrases in 17 subjects |
| Armored vehicles | 10 |
| Astronautics | 1 |
| Automated equipment | 1 |
| Automobiles | 9 |
| Aviation | 5 |
| Combustion gas turbines | 2 |
| Energy industry | 5 |
| Firefighting and fire-control systems | 1 |
| Makarov | 1 |
| Military | 1 |
| Nanotechnology | 3 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Rail transport | 1 |
| Technology | 17 |
| Thermal engineering | 7 |
| Transport | 1 |