 |
| operating limits: 38 phrases in 15 subjects |
| Aeronautics | 1 |
| Astronautics | 7 |
| Aviation | 2 |
| Caspian | 1 |
| Electronics | 2 |
| Energy industry | 4 |
| Energy system | 1 |
| Household appliances | 1 |
| Industry | 1 |
| Military | 3 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Programming | 4 |
| Technology | 8 |