| |||
optical source; visual source |
оптический источник : 68 phrases in 11 subjects |
Aerohydrodynamics | 1 |
Astronomy | 2 |
Automated equipment | 1 |
Household appliances | 1 |
Makarov | 3 |
Mass media | 52 |
Medical | 1 |
Military | 1 |
Physics | 1 |
Technology | 2 |
Telecommunications | 3 |