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без поля : 17 phrases in 9 subjects |
| Aviation | 3 |
| Electronics | 2 |
| General | 1 |
| High energy physics | 1 |
| Mathematics | 1 |
| Oceanography & oceanology | 1 |
| Optics branch of physics | 2 |
| Polygraphy | 1 |
| Quantum electronics | 5 |
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