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| 光器件 (приспособление, прибор); 光学装置 | |||
| оптическое устройство: 86 phrases in 9 subjects |
| Astronautics | 1 |
| Computers | 2 |
| Electronics | 3 |
| General | 39 |
| Information technology | 7 |
| Military | 2 |
| Polygraphy | 4 |
| Technology | 27 |
| United Nations | 1 |
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