The comprehensive performances, including the efficiency, cavitation and stability are the emphases of research of the hydraulicmachinery.
效率、空化性能及稳定性是混流式水轮机的三大综合性能指标，也是我们研究的重点。
2
Hydraulic drive system can reduce the hydraulic shock impact on the efficiency of the whole machinery by the different ways.
液压传动可以通过不同方式来降低液压冲击对整机效率的影响。
3
The paper presents an on-line condition monitoring and diagnosis system based on embedded system, which can improve the efficiency and reliability of hydraulic system for engineering machinery.