... supporting housing ==> 支罩 supporting jack ==> 支撑千斤顶 supporting layer ==> 支承层,支持层,承托层 ...
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挖沟时支撑用的千斤顶 trench jack
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.
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