介绍一种电子数控的移动式液压传动的体外心脏按压机的工作原理、结构设计和人体模型上的试用效果。
This article introduces the working principle, the structural design of a mobile digital hydraulic extracorporeal heart compression machine and its trial result on the human model.
根据水压凿岩机液压传动原理和使用要求，详细介绍了凿岩机中冲击器、操纵阀和支腿的结构特点和设计方法。
According to the drive mechanism and the demand of the hydraulic rock drill, the structure character and the designing ways of the impact device, control valve and supporting arm were introduced.
本文从研究液压传动系统的基本原理着手，设计压铸机的液压传动系统。
Beginning of researching on the theory of hydraulic drive system, the hydraulic drive system of die casting machine is designed.
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