单词	DTMF signaling
释义	DTMF signaling 双音多频信令方式
随便看	within-sites precision Within six years Within six years,Utah had won statehood Within six years, Utah had won statehood within someone's danger within someone's depth within someone's discretion within someone's discretion to do within someone's grasp within someone's ken within someone's province within someone's reach within someone's recollection within sound of within sound of my voice within sound of the bells Within Sound of the Sea within southwest China within speaking distance within species clones within-species clones within sphere within spitting distance within spitting distance of within spitting distanceof something