常見例句You can select single, dual or multi frequency among Germany (DCF, 77.5kHz), US (WWVB, 60kHz), Japan(JJY40 &NJJY60), or UK(MSF 60kHz) . 全球獨創(chuàng)銅字麪電波表。根據(jù)不同國家的頻率，生産單頻，雙頻，多頻的機芯（DCF，JJY，NJJY，MSF，WWVB）。multi frequency energy harvesting 多頻能量採集multi frequency signaling system 多頻信令系統(tǒng)Dual Tone Multi Frequency(DTMF) signal DTMF信號Dual Tone Multi Frequency detection [DTMF detection] 雙音調(diào)多頻探測Dual Tone Multi Frequency generation [DTMF generation] 雙音調(diào)多頻放射 返回 multi-frequency