液压油的英文：
hydraulic liquid
hydraulic oil
hydraulic power oil

hydraulic是什么意思：
adj. 液压的；水力的；水力学的

Hydraulic jack including hydraulic press and hydraulic press.
液压千斤顶包括水压机和油压机。

hydraulic plumbing system
液压管路系统

Solenoid valves (air and hydraulic) plus air and hydraulic accessories.
压缩空气、液压系统的电磁阀及辅助设备

liquid是什么意思：
adj. 液体的；清澈的；明亮的；不稳定的
n. 液体，流体

The liquid is then diluted.
然后液体被稀释。

A small amount of liquid;a drop.
少量液体；一滴

soil or stain with a splashed liquid.
用溅出的液体弄脏或沾污。

oil是什么意思：
n. 油；石油；油画作品
v. 给...供油；使涂满油；加燃油；融化
adj. 石油的；产油的

pecan oil (=hickory oil)
美洲山核桃油

The oil is carried to the oil refinery by pipelines.
石油通过输油管输送到炼油厂。

The traditional carding oil has been replaced by mineral oils
用矿物油代替惯用的梳毛油。