 |
| предупредительный сигнал: 112 phrases in 26 subjects |
| Armored vehicles | 3 |
| Automated equipment | 4 |
| Automobiles | 7 |
| Communications | 1 |
| Computer networks | 1 |
| Construction | 2 |
| Electrical engineering | 2 |
| Electronics | 2 |
| Energy industry | 2 |
| Firefighting and fire-control systems | 1 |
| General | 4 |
| Information technology | 2 |
| Mass media | 4 |
| Military | 3 |
| Mining | 3 |
| Nuclear physics | 1 |
| Occupational health & safety | 1 |
| Oil and gas | 1 |
| Rail transport | 6 |
| Road works | 1 |
| Security systems | 4 |
| Signalling | 8 |
| Technology | 39 |
| Telecommunications | 4 |
| Transport | 5 |
| Yachting | 1 |