下层甲板的主梁必须立即用螺旋千斤顶进行支撑。
The main-beams of the lower deck had to be shored with screw-jacks forthwith.
通过女儿告诉我他有把千斤顶，不过对于吉普车仍有点小，我们还需要其他支撑。
He conveyed through her that he had a jack but that it was too small for the Jeep, so we would need to brace it.
千斤顶：在应用力学中，指携带方便、以手操作的装置，可将重物稍微抬高，能施加巨大压力，或将装配好的对象牢固地支撑在原地。
Jack: in practical mechanics, portable hand-operated device for raising heavy weights through short distances, exerting great pressures, or holding assembled work firmly in position.
用千斤顶把车支撑起来，这样你就能够换轮胎了。
火箭炮车千斤顶是一个影响战术技术性能的关键件，要求它在规定的时间内可靠地支撑起炮车。
A hoisting jack is a key component for a rocket launcher vehicle, influencing the combat performance. It is required to support the combat vehicle reliably within the prescribed time.
在该工程中采用了新颖的伞型斜向支撑技术，并利用螺旋式千斤顶进行主动支顶。
In connection with an engineering example, this paper introduces the application of a novel active roof-propping technique which uses umbrella-shaped braces and screw jacks for active propping.
升起并支撑汽车。把一个液压千斤顶放在车轴下面并支撑起来。
Raise and support the vehiclPosition a hydraulic jack under the axle to support it.
升起并支撑汽车。把一个液压千斤顶放在车轴下面并支撑起来。
Raise and support the vehiclPosition a hydraulic jack under the axle to support it.
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