 |
| открытый сигнал: 26 phrases in 14 subjects |
| Astronautics | 1 |
| Automated equipment | 1 |
| Automobiles | 3 |
| Computer networks | 1 |
| Electronics | 2 |
| Information security and data protection | 1 |
| Makarov | 1 |
| Mass media | 1 |
| Military | 2 |
| Programming | 4 |
| Rail transport | 2 |
| Technology | 4 |
| Transport | 2 |
| Yachting | 1 |