新型系统的主要液压回路由少量阀元件和机械联结约束的若干泵元件构成。
The main hydraulic circuit of the new system composed of a few valves and the pump components which are linked up and constrained by means of mechanism.
基于液压减振器的工作原理、内部结构和阀元件的性能，建立了一个新的液压减振器数值模型。
The paper studies a new numerical model of the hydraulic shock absorber, based on its working principle, elements construct and valves behaviours.
熟悉液压系统，气动元件，电磁阀，及机械传动系统，了解PLC控制原理。
Familiar with hydraulic systems, pneumatic components, solenoid valves, and mechanical drive system, understand PLC control theory.
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