It has been proved in experiments that these methods not only improve the efficiency of the hydraulic system, but also the controllability of excavator.
试验证明，这些措施的采用，不仅提高了液压系统效率，而且使挖掘机的操纵性得到明显提高。
This paper makes an analysis on the hydraulic system which has the better reference value for improvement of the hydraulic system of cantilever excavator.
文章对本液压系统进行了具体的分析和评价，为改进完善悬臂式掘进机的液压系统，具有较好的参考价值。
In order to improve the efficiency of hybrid power system applied in hydraulic excavator, a parameter matching method was developed to optimize the power system.
为了提高液压挖掘机混合动力系统的效率，提出了一种对其动力系统进行优化的参数匹配方法。
The principle, mathematical model, system software of a hydraulic excavator with micro computer controlled digging movement and it's bench test results are introduced in this paper.
本文介绍用微机控制液压挖掘机作业运动的原理、控制模型、系统软件以及试验台试验结果。
The paper a detail analysis on the fault occurred in the hydraulic guide system of WLY202-CW excavator. And fault treatment procedure and methods made on base of the analysis are also introduced.
文章针对WLY202—CW全液压轮式挖掘机在运行初期所出现的液压先导系统特殊故障进行了分析，并依据分析结果顺利解决了因厂家制造缺陷所造成的该故障。
The fault diagnosis system not only applies in the hydraulic motor of swivel gear but also in the running gear and working device of excavator after extending fault diagnosis system.
本文开发的故障诊断系统平台不仅可以用于回转装置液压马达的故障诊断，经拓展后还可用于挖掘机行走装置、工作装置液压系统。
The fault diagnosis system not only applies in the hydraulic motor of swivel gear but also in the running gear and working device of excavator after extending fault diagnosis system.
本文开发的故障诊断系统平台不仅可以用于回转装置液压马达的故障诊断，经拓展后还可用于挖掘机行走装置、工作装置液压系统。
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