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| колебание несущей: 20 phrases in 9 subjects |
| Aviation | 4 |
| Helicopters | 2 |
| Household appliances | 2 |
| Mass media | 6 |
| Physics | 1 |
| Radio | 1 |
| Technology | 1 |
| Telecommunications | 2 |
| Transport | 1 |
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