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оптический сигнал : 17 phrases in 12 subjects |
Automated equipment | 1 |
Communications | 1 |
Computers | 1 |
Medical appliances | 2 |
Microelectronics | 2 |
Military | 1 |
Nautical | 1 |
Optics branch of physics | 1 |
Quantum electronics | 3 |
Technology | 2 |
Water supply | 1 |
Радиоактивное излучение | 1 |