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 |