English Dictionary

hydraulic ram

noun

Used other than figuratively or idiomatically: see hydraulic, ram.

The hydraulic ram is used to convert hydraulic power into mechanical power.

意味（1）

Used other than figuratively or idiomatically: see hydraulic, ram.

意味（2）

A water pump in which a flow of water is intermittently halted by a valve so that the flow is forced upward through an open pipe, usually into a reservoir.

意味（3）

A hydraulic cylinder with a piston activated by pumping hydraulic fluid into the cylinder.

The lifts are operated by means of a hydraulic ram with wire ropes, which derives its pressure from a small pump driven by an electric motor.