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кристалл лазера : 30 phrases in 9 subjects |
| Astronautics | 1 |
| Electronics | 2 |
| Household appliances | 2 |
| Lasers | 7 |
| Makarov | 8 |
| Mass media | 4 |
| Military | 2 |
| Quantum electronics | 1 |
| Technology | 3 |
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