Jack ran to do a side turn, jumped up and grabbed the monkey rod, and pulled himself across rapidly alternating his hands.
杰克跑着做了一个侧手翻，跳起来抓住猴杆，双手交替着将自己迅速拉到对岸。
2
The hoisting jack calls the mechanical hoisting jack, is by the manpower through the screw vice-transmission, the screw rod or the nut sleeve achievement goes against lifts.
液压千斤顶又称机械式千斤顶，是由人力通过螺旋副传动，螺杆或螺母套筒作为顶举件。
3
Each supporting rod on the jack can cease climb at preset elevation and the slip-form supported by the jack adjusts to be horizontal if the limit stop on each supporting rod is at the same elevation.