frequency modulated system 调频系统

Q-modulated system Q调制系统

pulse code modulated system 脉冲编码调制系统

pulse-width-modulated system 脉冲调宽系统

frequency-modulated telecontrol system generator 调频遥控系统发生器

phase modulated telemetering system 相位调变遥测系统

pulse-modulated communication system [通信] 脉冲调制通信系统

angle-modulated radio relay system 调角无线电接力系统

temperature-modulated choke system 温度控制的阻风门系统