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- 通信DTMFcommunication DTMF
- 短波地空通信多普勒頻移對DTMF信號解碼影響Effect to DTMF decoding of Doppler shift in ground-air HF communication
- 采用DTMF方式通信的安全報警系統Safety Alert System By DTMF Communication mode
- DTMFDual Tone Multi - Frequency
- 你親自或通信申請均可。You may apply in person or by letter.
- DTMF信號DTMF signal
- DTMF解碼DTMF decode
- 兩個(gè)姑娘現在定期互相通信。Both girls write to each other regularly now.
- DTMF信令DTMF signaling
- 你一直和他通信嗎?Have you been corresponding with him?
- 地下鐵道通信communication in the subway
- DTMF信號檢測DTMF signal detection
- 頻分多路通信frequency division multiplex communication
- 雙音多頻（DTMF）DTMF(Dual Tone Multiple Frequency)
- 鐵路長(cháng)途通信railway toll communication
- DTMF（雙音多頻）Dual- Tone Multifrequency
- 流星余跡通信設備meteoric trail communication equipment
- 雙音多頻（DTMF）傳輸double tone multifrequency(DTMF)
- 軍鴿通信military pigeon communication
- DTMF信號的產(chǎn)生和檢測。Generation and detection of the DTMF signals.
