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dual tone multifrequency
mil., air.def.
双音频
oil
双音频信号
telecom.
双音多频
dual-tone multifrequency
space
双音多频
dual-tone multifrequency
system
el.
双音多频
制
English thesaurus
dual-tone multifrequency
telecom.
DTMF
(
ssn
)
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