 |
| 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 |