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| контрольная частота коммутации (для включения резервного усилителя или замены одного участка линии другим) | |||
| пилот-сигнал переключения | |||
| сигнал управления коммутацией | |||
| сигнал переключения | |||
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switching pilot : 12 phrases in 7 subjects |
| Advertising | 1 |
| Aviation | 1 |
| Electrical engineering | 1 |
| General | 3 |
| Molikpaq | 3 |
| Technology | 2 |
| Telecommunications | 1 |
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