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transmit-receive channel frequencies | |||
transmit and receive frequencies (oleg.vigodsky) |
частоты передачи и приёма : 20 phrases in 7 subjects |
Astronautics | 1 |
Makarov | 1 |
Mass media | 12 |
Military | 1 |
Nautical | 2 |
Technology | 1 |
Telecommunications | 2 |