The hydraulicamplifier 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。
2
This paper introduces the structure and operation principle of the synchronous rotary hydraulicamplifier as well as the main data of performance measured during the test on platform.
本文介绍同步回转式液压放大器的结构和工作原理，以及它在台架试验中所测得的主要性能数据。
3
The power stage of servovalves is spool valve, playing the role of hydraulic pressure amplifier.