blocking oscillator modulator

例句：

1. 1. The blocking oscillator modulator is used to control the speed of the motor.
   阻塞振荡器调制器用于控制电机的速度。
2. 2. The modulator is a crucial component in the signal processing system.
   调制器是信号处理系统中的关键组件。
3. 3. The modulator is responsible for converting the digital signal into an analog signal.
   调制器负责将数字信号转换为模拟信号。