The device consists of mechanical parts and hydraulic system components.
该装置由机械部分与液压系统组成。
Water hydraulic control valves are important and the key base components in water hydraulic system.
纯水液压控制阀是纯水液压系统的重要关键基础元件。
In the hydraulic pressure engine drive system, is some quite precise components.
在液压机传动系统中，都是一些比较精密的零件。
In the hydraulic pressure engine drive system, is some quite precise components.
在液压机传动系统中，都是一些比较精密的零件。
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