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| frequency record (для последующего анализа) | |||
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запись частот : 51 phrases in 8 subjects |
| Astronautics | 2 |
| Electronics | 3 |
| Hi-Fi | 2 |
| Information technology | 1 |
| Mass media | 35 |
| Rail transport | 1 |
| Technology | 3 |
| Telecommunications | 4 |
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