The former scheme controls the corresponding valve by fixed pressurizing and depressurizing time and the latter by settled flux cumulation volume.

 
  • 前者通過(guò)設定合理的增壓及泄壓時(shí)間來(lái)控制相應電磁閥開(kāi)閉,后者通過(guò)儀表設定合理的流量累積體積來(lái)控制相應電磁閥開(kāi)閉。
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