液压式平衡自动上底机auto hydraulic balancing sole attaching machine
液压升降塔架hydraulic platform
水力冲击液压冲击hydraulic impact
随动液压放大器follow-up hydraulic amplifier
油层水力压裂oil formation hydraulic fracturing【油气】
水压泵试验机hydraulic pressure pumping tester
履带式液压挖掘机crawler-type hydraulic excavator
水力离析hydraulic classification