roll changing rig

例句：

1. 1. The rollerchange system allows for quick and easy access to the machinery.
   滚轮换装系统允许快速方便地访问机械。
2. 2.The engineers were tasked with installing the roller change system in the factory.
   工程师们被指派在工厂安装滚轮换装系统。
3. 3.During maintenance, the roller change system was used to replace the worn out parts on the conveyor belt.
   在维护期间，滚轮换装系统被用来更换输送带的磨损部件。