ADJ [ADJ n](设备或机械)水压的,液压的Hydraulic equipment or machinery involves or is operated by a fluid that is under pressure, such as water or oil. (设备或机械)水压的,液压的
The boat has no fewer than five hydraulic pumps.
这艘船配有不少于5个液压泵。
hydraulically
...hydraulically operated pistons for raising and lowering the blade.