People have recognized to control the oil pollution more and more, especially for the hydraulic pressure servo controlling system which has the high precision demand.
因此人们越来越重视对其的控制，特别是对于精度要求非常高的液压伺服控制系统来讲，污染控制显得更为重要。
In this paper a new way through changing pump's rotate speed to change its output flux is introduced, which could solve the defects in the traditional hydraulic pressure servo control system.
本文提出了利用先进的交流变频调速技术改变油泵转速的容积调速新方法，较好地解决了传统液压调速系统存在的上述问题。
Ratio, servo hydraulic pressure technology, low power pneumatic control valve, production of stuffing.
比例、伺服液压技术，低功率气动控制阀，填料密封生产。
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