短語詞組短語rectangular stress wave 矩形應(yīng)力波long -rectangular-wave generator 長矩形波發(fā)生器PWM rectangular wave PWM 矩形波rectangular wave decomposition 矩形波分解rectangular wave current [電子]方波電流High frequency rectangular wave 高頻方波rectangular wave guide 矩形導(dǎo)波管variable polarity rectangular wave 變極性矩形波rectangular wave generator 矩形波發(fā)生器 返回 rectangular wave