The compressed air powered wrench is capable of providing revert-torque to retrievable boltend and sustain drag force.
该锚杆回收扳手由压气驱动，在给可回收锚杆的尾部提供反扭矩的同时，还可以承受拉力。
2
The unique column design has diagonal bracing at each end and tabs that bolt into the floors above and below.
独特的柱形设计在每一头都有对角线支撑，使其与上下楼层通过螺栓进行连接。
3
Sucre perches on the top bunk acting as lookout over the cell block, while Michael grinds the other end of the bleacher bolt against the steel bunk frame.