This paper study and design its hydraulicpowercontrol system and introduces the tool's automatic down hole closed loop of control principle and ways.
对工具内部的液压控制原理及控制回路进行了研究和设计；
2
Monitoring and redundancy within the flight control system, aircraft sensors, power and hydraulic generation ensure a high degree of availability of the electrical control.
飞行操纵系统的监控和冗余、飞机传感器、动力和液压的产生，这些构成了高度有效性的电传操纵。
3
The hydraulic drilling machine with computer control technology, the pump and engine matching control to realize the intelligent, not only power is stronger, and more fuel-efficient.