The hydraulic amplifier is the hydraulic control system based on the theory of hydraulic drive and automatic control.
液压放大器，是在液压传动和自动控制理论基础上，建立起来的一种液压控制系统。
This Paper Puts forward an automatic level coned system of static pile driver's body by using electro-hydraulic proportional technique to solve the difficult level control problem.
本文针对静力压桩机调平困难的问题，提出了一种采用电液比例控制技术设计的压桩机的机身自动调平系统。
Experiments have demonstrated the rationality and correctness of the hydraulic automatic control technique applied to travel system and belt automatic tensioning device.
试验证明了该行走系统及皮带自动张紧装置中运用的液压自动控制技术的合理性及正确性。
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