The Jack PC can be installed into walls, floor or users' desks where only the connection plate is showing.
只要有连接板，杰克个人电脑就能够安装在墙壁里，地板下或用户办公桌上。
2
The jack is usually mounted in a wall plate or patch panel.
杰克通常安装在壁板或接线板。
3
When vertical column is lifted, the roof beam is closely near top plate, the integrated mining equipment can be lifted or laid down by the hoisting jack.