floating reamer

例句：

1. 1. The engineer used a floating reamer to remove the old screws.
   工程师使用一个浮动铣刀来移除旧螺丝。
2. 2.The machine shop had to replace the floating reamer after it broke.
   机器车间不得不更换这个已经坏了的浮动铣刀。
3. 3. The technician was using a floating reamer to clean the gears before they were installed.
   技术员在使用浮动铣刀清洁齿轮之前，将它们安装好。