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| случайный сигнал: 26 phrases in 17 subjects |
| Automated equipment | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Aviation medicine | 1 |
| Computers | 1 |
| Electronics | 4 |
| Firefighting and fire-control systems | 1 |
| Information technology | 2 |
| Intelligence and security services | 1 |
| Makarov | 3 |
| Mass media | 2 |
| Metrology | 3 |
| Military | 1 |
| Radio | 1 |
| Security systems | 1 |
| Technology | 1 |
| Telecommunications | 1 |