линия наблюдения: 74 phrases in 17 subjects |
Artillery | 2 |
Astronautics | 1 |
Astronomy | 1 |
Automated equipment | 4 |
Aviation medicine | 1 |
Energy system | 1 |
Geophysics | 40 |
Makarov | 1 |
Mass media | 1 |
Medical | 1 |
Military | 8 |
Nautical | 3 |
Navigation | 1 |
Oil / petroleum | 3 |
Physics | 1 |
Technology | 1 |
Telecommunications | 4 |