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| composite sample | |||
| матрица композита: 20 phrases in 10 subjects |
| Automated equipment | 2 |
| Aviation | 1 |
| Ceramics | 1 |
| Chemistry | 3 |
| Electronics | 4 |
| General | 1 |
| Makarov | 2 |
| Polymers | 2 |
| Solid-state physics | 3 |
| Technology | 1 |
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