superfaced welding rod

例句：

1. 1. The superfaced welding rod was used to join thetwo pieces of metal together.
   超表面焊接杆被用来将两块金属连接在一起。
2. 2.The engineer used a superfaced welding rod to repair the damaged partof the machine.
   工程师使用超表面焊接杆来修理机器的损坏部分。
3. 3. Thesuperfaced welding rod isan essential tool for welding work.
   超表面焊接杆是焊接工作必不可少的工具。