 |
|
operating limit : 36 phrases in 14 subjects |
| Aeronautics | 1 |
| Astronautics | 1 |
| Aviation | 1 |
| Caspian | 1 |
| Electronics | 2 |
| Energy industry | 4 |
| Energy system | 1 |
| Household appliances | 1 |
| Military | 2 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Programming | 1 |
| Space | 11 |
| Technology | 8 |