求翻译：起重机在运行时禁止人员上下；也不能在运行中检修；禁止从一台桥式起重机跨到另一台桥式起重机上去，上下起重机要走专用梯子；起重机进行维护保养时，应切断主电源，并挂上标志牌或加锁。是什么意思？

Crane prohibit staff from top to bottom in the run-time; can not run in maintenance; prohibit cross from one crane to another crane go up, up and down the cranes to go dedicated ladder; crane maintenance, should cut off the main power supply, and hang up signs or locked.

正在翻译，请等待...

Hoist crane when movement forbids about the personnel; Also cannot overhaul in the movement; The prohibition steps from a bridge type hoist crane to another bridge type hoist crane comes up, about lifts heavy objects confidentially walks the special-purpose ladder; When the hoist crane carries on th

Cranes at run time prohibit staff from top to bottom; nor can run maintenance; prohibition of crane across from one bridge to another crane up, up and down the cranes to go private ladder; crane maintenance, you should cut off the main power and hung up signs or locking.

Cranes at run time prohibit staff from top to bottom; nor can run maintenance; prohibition of crane across from one bridge to another crane up, up and down the cranes to go private ladder; crane maintenance, you should cut off the main power and hung up signs or locking.