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| optical spectrum: 33 phrases in 10 subjects |
| Computers | 1 |
| Electronics | 2 |
| Laser medicine | 1 |
| Makarov | 13 |
| Military | 5 |
| Nanotechnology | 3 |
| Optics branch of physics | 1 |
| Physics | 2 |
| Technology | 3 |
| Telecommunications | 2 |
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