| |||
optical region (спектра) |
оптическая область: 56 phrases in 12 subjects |
Astronautics | 1 |
Astronomy | 2 |
Aviation | 1 |
Cables and cable production | 5 |
Electronics | 3 |
Makarov | 2 |
Mass media | 23 |
Military | 6 |
Nanotechnology | 5 |
Spectroscopy | 1 |
Technology | 5 |
Telecommunications | 2 |