P controller

例句：

1. 1. The P controller is responsible for controlling the speed of the conveyor belt.
   P控制器负责控制输送带的速度。
2. 2.The P controller allows for easy adjustment of the machine settings.
   P控制器允许轻松调整机器设置。
3. 3.The P controller is used to control the temperature and humidity in a factory environment.
   P控制器用于控制工厂环境中的温度和湿度。