电气控制与plc实训教程电子教案的第六部分，对学习的人很有帮助，讲解细致，思路清晰，我觉得相当不错，与大家一起分享！-Electrical Control and Training Course plc of Part VI of electronic lesson plans, and learn helpful to explain the meticulous, clear-headed, I feel pretty good to share with everyone!