短語詞組短語pulse -modulation-signal 脈沖調(diào)制信號(hào)Pulse -code modulated signal 脈沖編碼調(diào)制信號(hào)laser pulse -encoded signal 激光脈沖編碼信號(hào)low -pulse signal 微弱脈沖信號(hào) 返回 pulse signal