单词	content and aim
释义	content and aim 内容和目的
随便看	Phase-velocity cine Phase velocity distribution phase velocity filtering phase velocity modulation phase velocity of electromag-netic wave Phase velocity of surface waves phase velocity of transmission mode phase velocity of wave PHASE VELOCITY OR GROUP VELOCITY phase velocity scanning phase-versus-frequency response characteristic phase vertical arrangement phase-veversal coding phase-veversal protection phase-veversal switch phase VI phase VII phase vocoder phase voltage phase voltage regulator phase-voltage regulator phase volume phase volume fraction phase volume ratio phase volume theory