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| оптических сигналов: 174 phrases in 21 subjects |
| Astronautics | 3 |
| Automated equipment | 1 |
| Cables and cable production | 29 |
| Computer networks | 10 |
| Computers | 1 |
| Electronics | 3 |
| Energy industry | 3 |
| Gyroscopes | 2 |
| Information technology | 1 |
| Makarov | 6 |
| Mass media | 64 |
| Medical appliances | 1 |
| Metrology | 2 |
| Military | 8 |
| Nanotechnology | 3 |
| Nuclear physics | 1 |
| Quantum electronics | 1 |
| Security systems | 2 |
| Technology | 8 |
| Telecommunications | 24 |
| Радиоактивное излучение | 1 |
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