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。
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