A hydraulic drive system of cutter head in shield tunneling machine was designed, which is open type hydraulic system and controlled in open-ring.
设计了一个盾构掘进机的刀盘驱动液压系统，该系统是开式液压系统，应用电液比例控制技术实现了泵排量实时调节。
It is the typical and key hydraulic component in every lifting hydraulic pressure loop with open-type System.
是各种开式系统起重液压回路典型而关键的液压元件。
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