rotary tube expanding machine是什么意思

用法例句

Aimed at the defects of too much inner screw thread in pipes and low capacity of the process,a new type of Accu-Roll and Expander(ARE) steel pipe mill was put forward.

介绍了Accu-Roll轧管机组的工艺特点,并针对此工艺存在的钢管内螺纹严重及产能较低的问题,提出了一种全新机组——ARE轧扩管机组。