 |
| free vibration: 31 phrases in 16 subjects |
| Astronautics | 1 |
| Automated equipment | 3 |
| Aviation | 5 |
| Chemistry | 1 |
| Construction | 1 |
| Forestry | 1 |
| General | 1 |
| Makarov | 2 |
| Mathematics | 2 |
| Medical appliances | 1 |
| Nanotechnology | 2 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Packaging | 2 |
| Technology | 6 |
| Transport | 1 |