1.
A jack operated by a screw.
螺旋起重机，螺旋千斤顶由螺旋杆运作的起重机
2.
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。
3.
"Is there a jack-screw to be had?"
“你们有千斤顶吗？”
4.
Complete detail drawings of the screw thread insert (Part 2#) by the assembly drawing of the jack.
根据千斤顶装配图拆画件2螺套的零件图。
5.
Jack up a car
用千斤顶把汽车顶起来
6.
Contents: understand the assembly drawing of a jack and complete detail drawings of a screw thread insert by the assembly drawing.
内容：读懂千斤顶装配图，并由装配图拆画件2螺套的零件图。
7.
395 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。
8.
They put the car up with a hoisting jack.
他们用千斤顶把车抬高。
9.
lifting jack (excl. hydraulic)
千斤顶（液压的除外）
10.
hydraulic jack (excl. built in)
液压千斤顶（固定的除外）
11.
hydraulic trolley jack
手推车式液压千斤顶
12.
horizontal action jack (excl. hydraulic)
水平千斤顶（液压的除外）
13.
a pneumatic jack
气力起重机, 气力千斤顶
14.
hand vertical hydraulic jack
手动立式油压千斤顶
15.
oil-powered hydraulic truck jack
燃油液压汽车千斤顶
16.
built-in jack for lifting vehicles
起升车辆固定千斤顶
17.
hand operated vertical hydraulic jack
手动立式液压千斤顶
18.
lift a car with a jack
用千斤顶把汽车托起