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- screw jack prop 螺旋千斤顶支柱
- We can adjust the levelness of the machine by means of shim and screw jack. 我们可以利用垫铁和螺丝千斤顶来调整机器的水平度。
- The lifting capacity of this chain hoist (hydraulic jack, screw jack) is 5 ton. 这个吊链(油压千斤顶;螺旋千斤顶)的起重能力为5吨.
- The lifting capacity of this chain hoist (hydraulic jack, screw jack) is 5tons. 这个吊链（油压千斤顶、螺旋千斤顶）的起重能力为5吨。
- Each of the four legs contains a simple screw jack with a thrust bearing that is operated telescopically inside of two tubes. 四条腿中每个都装有一个简单的螺旋千斤顶，千斤顶中又有一个在两根管道中做伸缩操作的推力轴承。
- You can usually find Jack propping up the bar at his local. 你常常可以看见杰克频繁出没于他居住的那家酒店。
- Design and Calculation of Screw Jack 螺旋千斤顶的设计计算
- Jack was assigned to the assembly shop of the factory. 杰克被分配到厂里的装配间工作。
- I can't get this screw to come out of the wall. 我无法把这颗螺丝钉从墙上取出。
- I am longing to see my friend Jack again. 我渴望再见到我的朋友杰克。
- He has no intention to jack up the plan. 他没有放弃这个计划的意思。
- The fire cracker went off and scared Jack's dog. 爆竹爆炸声把杰克的狗吓了一跳。
- Prop the door open with a brick. 用砖块撑门使其开著。
- The brackets want an extra screw. 托架需要再加一个螺钉。
- The government refuses to prop up inefficient industries. 政府拒绝补贴效益不佳的行业。
- Do you think Jack could bite in his secret want? 你以为杰克能忍住不说出他藏在心里的欲望吗？
- Jack and Mary are cut out for each other. 杰克和玛丽真是天造地设的一对。
- Jack was fired twice but both times taken back. 杰克曾两次被解雇，但两次都被允许回去工作。
- The firecracker went off and scared Jack's dog. 爆竹响了，吓了杰克的狗一跳。
