The hydraulicstate in critical downhill section of long pipeline is unusual, and installing pressure regulation station is a widely used method for meeting its special requirement.
输油管道的大落差段有特殊的水力状态，设置压力调节站是适应这种水力状态而广泛采用的技术。
2
The pore pressure also strongly influences the state of stress in a formation (by as much as 50%) and is therefore a critical piece of information for designing hydraulic fracturing treatments.
孔隙压力也强烈地影响地层中的(多达50%)的应力状态，并针对设计水力压裂处理而言是一项重要信息。
3
This paper proposes a state feedback control strategy with a neural network compensator, which is applied in a hydraulic position servo system.