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| назначение частоты; размещение частот; распределение частот | |||
| 频率分配: 13 phrases in 7 subjects |
| Electronics | 1 |
| General | 2 |
| Military | 1 |
| Radio | 1 |
| Statistics | 1 |
| Technology | 6 |
| Telecommunications | 1 |
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