pulse trigger

例句：

1. 1. The pulse trigger is responsible for controlling the flow of electricity in the circuit.
   脉冲触发器负责控制电路中电流的流动。
2. 2. The pulse trigger was designed to detect and respond to changes in the environment.
   脉冲触发器被设计用来检测和响应环境的变化。
3. 3. The pulse trigger was used to control the speed of the motor.
   脉冲触发器被用来控制电机的速度。