 |
| signatures analysis: 29 phrases in 13 subjects |
| Acoustics | 1 |
| Automated equipment | 1 |
| Electrical engineering | 1 |
| Electronics | 4 |
| Energy industry | 3 |
| Forensics | 1 |
| General | 1 |
| Information technology | 1 |
| Makarov | 1 |
| Military | 8 |
| Technology | 5 |
| Telecommunications | 1 |
| Weapons of mass destruction | 1 |