 |
| traffic-control system: 87 phrases in 20 subjects |
| Astronautics | 2 |
| Automatic control | 1 |
| Automobiles | 1 |
| Aviation | 8 |
| Business | 3 |
| Construction | 1 |
| Electronics | 4 |
| Firefighting and fire-control systems | 1 |
| General | 7 |
| Gyroscopes | 1 |
| Logistics | 2 |
| Makarov | 2 |
| Military | 32 |
| Military aviation | 2 |
| Power system protection | 1 |
| Programming | 1 |
| Rail transport | 2 |
| Road works | 2 |
| Technology | 11 |
| Transport | 3 |