 |
| control relays: 75 phrases in 15 subjects |
| Astronautics | 1 |
| Automated equipment | 21 |
| Aviation | 1 |
| Electrical engineering | 5 |
| Electronics | 6 |
| General | 1 |
| Makarov | 2 |
| Mechanics | 1 |
| Military | 6 |
| Nautical | 1 |
| Nuclear and fusion power | 1 |
| Programming | 3 |
| Rail transport | 2 |
| Refrigeration | 1 |
| Technology | 23 |