space pattern: 23 phrases in 16 subjects |
Antennas and waveguides | 4 |
Electronics | 2 |
General | 2 |
Information technology | 1 |
Makarov | 1 |
Mass media | 1 |
Mechanics | 1 |
Military | 1 |
Nanotechnology | 1 |
Nautical | 1 |
Navigation | 1 |
Physics | 1 |
Programming | 2 |
Radiolocation | 1 |
Technology | 2 |
Telecommunications | 1 |