IIW

例句：

1. 1. The welder is using a MIG welding machine to join the steel plates together.
   焊工正在使用MIG焊接机将钢板连接在一起。
2. 2. The welding process involves heating up the metal and joining it with another piece of metal.
   焊接过程涉及加热金属并将其与其他金属连接起来。
3. 3. The welding torch is used to create a strong bond between the two pieces of metal.
   焊接枪用于在两块金属之间创建牢固的连接。