水压主管
the integrating electro-hydraulic main pressure valve with longevity, oil-saving, non-maintenance and fore-feedback
长寿、节油、免维护力反馈集成式电液主配压阀
analysing the hydraulic main circuit press changing law in the process
提升机起闭过程中液压主回路压力变化规律分析
A failure diagnosis of hydraulic main pump for track crane QUY 80B
QUY80B履带式起重机液压主泵的一起故障诊断
the novel electro-hydraulic main pressure valve for turbine governor
一种新型的水轮机调速器用电液主配压阀
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