 |
| self-excited: 87 phrases in 26 subjects |
| Aerohydrodynamics | 1 |
| Astronautics | 1 |
| Automated equipment | 2 |
| Automobiles | 1 |
| Aviation | 5 |
| Combustion gas turbines | 1 |
| Construction | 2 |
| Electrical engineering | 5 |
| Electronics | 8 |
| Energy industry | 2 |
| Household appliances | 1 |
| Makarov | 12 |
| Mathematics | 2 |
| Measuring instruments | 2 |
| Nanotechnology | 1 |
| Nautical | 4 |
| Nuclear and fusion power | 2 |
| Oilfields | 1 |
| Physics | 2 |
| Quantum electronics | 1 |
| Seismology | 2 |
| Solar power | 1 |
| Technology | 23 |
| Telecommunications | 3 |
| Thermal engineering | 1 |
| Transport | 1 |