 |
| area density: 28 phrases in 16 subjects |
| Aviation | 8 |
| Ecology | 1 |
| Electronics | 2 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| Geology | 1 |
| Makarov | 1 |
| Mass media | 2 |
| Military | 1 |
| Nanotechnology | 1 |
| Oil / petroleum | 1 |
| Programming | 1 |
| Radiology | 1 |
| Rail transport | 1 |
| Technology | 4 |
| Telecommunications | 1 |