push jack

Taking the manual jacking screw-driving device as the research obje ct, and the volume of the driving screw pair as the objective function, this pap er makes the design by using the optimum method and sets up the mathematic model , which is realized through MATLAB toolbox.

以手动千斤顶螺旋传动装置为研究对象,以传动螺旋副的体积为目标函数,应用最优化方法进行设计,建立了数学模型,并通过MATLAB工具箱实现。

The Study on Damage Cause of Hydraulic Support Advancing Jack;

ZZ6400液压支架推移千斤顶损坏原因浅析

Examimation and the trouble analysis on measuring control pole of advancing jack of imported plough

进口刨煤机推移千斤顶测控杆的检测与故障分析

hydraulic trolley jack

手推车式液压千斤顶

Hydraulic jacks under the machine produce the movement.

是机器下面的液压千斤顶造成的移动。

"Is there a jack-screw to be had?"

“你们有千斤顶吗？”

Jack up a car

用千斤顶把汽车顶起来

Techniques for Synchronized and Integral Lowering of Movable Shuttering Form by Hydraulic Continuous Jacks

移动模架液压连续千斤顶同步整体下放技术

You must jack the car up;I can not move the wheel as it is.

你得用千斤顶把车顶起来；像现在这样我移不动轮子。

They put the car up with a hoisting jack.

他们用千斤顶把车抬高。

lifting jack (excl. hydraulic)

千斤顶（液压的除外）

hydraulic jack (excl. built in)

液压千斤顶（固定的除外）

horizontal action jack (excl. hydraulic)

水平千斤顶（液压的除外）

a pneumatic jack

气力起重机, 气力千斤顶

hand vertical hydraulic jack

手动立式油压千斤顶

oil-powered hydraulic truck jack

燃油液压汽车千斤顶

built-in jack for lifting vehicles

起升车辆固定千斤顶

hand operated vertical hydraulic jack

手动立式液压千斤顶

lift a car with a jack

用千斤顶把汽车托起