| 释义 |
〔jack〕To hoist with a jack:用千斤顶托起：〔jack〕jacked the rear of the car to replace the tire.用千斤顶将车子的后部抬起，以便更换轮胎〔jackscrew〕A jack operated by a screw. Also called screw jack 螺旋起重机，螺旋千斤顶：由螺旋杆运作的起重机 也作 screw jack〔lift〕A machine or device designed to pick up, raise, or carry something.起重机，千斤顶：用来抬高、升高或搬运某物的机器或装置〔jack〕A usually portable device for raising heavy objects by means of force applied with a lever, screw, or hydraulic press.千斤顶，起重机：通过杠杆、螺丝钉或水的压力把重物提起的便携式装置 |