国产美女裸体丝袜喷水视频 ,中国精品18videosex性中国 ,国产无遮挡又黄又爽动态图,高清无码中文字幕影片

  China Website 中文  
 
 
   
     
 
  Services
  Services
  FAQ
  Applications
 
  FAQ  
     
  What is a PID controller?  
     
  PID control is a combination of proportional control, integral control, and differential control. Proportional control can control temperature smoothly and without fluctuations; Integral control can achieve automatic offset matching; By utilizing differential control, a rapid response can be made to external disturbances.