 |
| собственная частота: 51 phrases in 15 subjects |
| Aerodynamics | 5 |
| Automated equipment | 5 |
| Aviation | 10 |
| Construction | 1 |
| Electronics | 6 |
| Energy industry | 2 |
| Engines | 4 |
| Geophysics | 2 |
| Medical | 1 |
| Missiles | 2 |
| Quantum electronics | 1 |
| Radio | 4 |
| Rail transport | 4 |
| Road works | 1 |
| Technology | 3 |