| 释义 |
Hydraulic jack
| See under Jack. | | a jack used for lifting, pulling, or forcing, consisting of a compact portable hydrostatic press, with its pump and a reservoir containing a supply of liquid, as oil. |
See also: Hydraulic, Jack hydraulic jack
hydraulic jack[hī′drȯ·lik ′jak] (mechanical engineering) A jack in which force is applied through the mechanism of a hydraulic press. hydraulic jack hydraulic jack A jack operated by means of a liquid, usually oil, acting against a piston; a small force, applied by means of a lever attached to a small piston, produces a very large force on a large piston. |