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| сигнал опознавания; опознавательный сигнал; опознавание сигнала | |||
| 识别信号: 26 phrases in 7 subjects |
| Aviation | 1 |
| Electronics | 1 |
| General | 8 |
| Military | 4 |
| Nautical | 2 |
| Radio | 2 |
| Technology | 8 |
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