Base de temps: 63 phrases in 15 subjects |
Antennas and waveguides | 1 |
Astronautics | 2 |
Automated equipment | 11 |
Computers | 2 |
Electronics | 4 |
Hydrography | 1 |
Information technology | 8 |
Measuring instruments | 1 |
Mechanic engineering | 2 |
Physics | 3 |
Radio | 23 |
Radiolocation | 1 |
Technology | 2 |
Television | 1 |
Welding | 1 |