converter tube: 39 phrases in 13 subjects |
Antennas and waveguides | 1 |
Astronautics | 2 |
Automated equipment | 2 |
Electronics | 4 |
Household appliances | 1 |
Information technology | 1 |
Makarov | 2 |
Mass media | 8 |
Metrology | 5 |
Military | 3 |
Nanotechnology | 1 |
Nuclear physics | 1 |
Technology | 8 |