полярное сияние : 140 phrases in 17 subjects |
Antennas and waveguides | 3 |
Astronautics | 11 |
Astronomy | 24 |
Australian | 1 |
Electronics | 12 |
General | 8 |
Geology | 4 |
High energy physics | 2 |
Makarov | 22 |
Mass media | 2 |
Mathematics | 1 |
Navigation | 8 |
Navy | 1 |
Physics | 18 |
Radio | 11 |
Technology | 10 |
Telecommunications | 2 |