- n.信號頻率信令
- signalling frequency: 鈴流頻率
- frequency shift signalling: 移頻發(fā)信; 移頻發(fā)訊
- frequency-exchange signalling: 換頻傳信
- single frequency signalling: 單頻信令
- single-frequency signalling: 單頻發(fā)信
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signal frequency signalling中文什么意思
- n.信號頻率信令
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