welding rod holder

例句：

1. 1.The welding rod holder is a crucial part of the welding process.
   焊接棒支架是焊接过程的关键部分。
2. 2.The welding rod holder was designed to keep the welding rod in place during the welding process.
   焊接棒支架被设计来在焊接过程中保持焊接棒的位置。
3. 3. The welding rod holder was used to hold the welding rod in place during the welding process.
   焊接棒支架被用来在焊接过程中固定焊接棒的位置。