relay systems: 145 phrases in 21 subjects |
Astronautics | 12 |
Automated equipment | 14 |
Aviation | 1 |
Chemistry | 1 |
Communications | 4 |
Electrical engineering | 2 |
Electronics | 4 |
Energy industry | 1 |
General | 3 |
High frequency electronics | 1 |
Makarov | 1 |
Mass media | 21 |
Mechanics | 1 |
Military | 26 |
Power system protection | 1 |
Programming | 5 |
Public utilities | 1 |
Radio | 1 |
Rail transport | 2 |
Technology | 27 |
Telecommunications | 16 |