screw jack prop 螺旋千斤顶支柱 ; 螺旋千斤顶式临时金属支柱
bar-screw jack 棒形千斤顶
power-driven screw-jack set 电动螺旋起重机组
Screw Jack Reducer Series 螺旋升降器
bolster screw jack 车架螺旋千斤顶
differential screw jack 差动螺旋千斤顶 ; 差动螺旋起重器
ball screw-jack 滚珠螺旋致动器
extension screw jack 伸缩式螺旋千斤顶
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N a lifting device utilizing the mechanical advantage of a screw thread, the effort being applied through a bevel drive 千斤顶 (Also called jackscrew, jack)
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。
We can conform the levelness of the machine by means of shim and screw jack.
我们可能利用垫铁和螺丝千斤顶来调零件器的水平度。
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。
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