 |
| structural system: 64 phrases in 17 subjects |
| Abbreviation | 1 |
| Acoustics | 1 |
| Architecture | 5 |
| Astronautics | 6 |
| Aviation | 3 |
| Bridge construction | 1 |
| Building structures | 1 |
| Construction | 25 |
| Electronics | 2 |
| Energy industry | 1 |
| General | 1 |
| Makarov | 2 |
| Military | 9 |
| Programming | 1 |
| Real estate | 1 |
| Seismology | 2 |
| Technology | 2 |