cyc-arc welding

例句：

1. 1.The steel beam was welded together using a cyc-arc welding machine.
   使用环焊机将钢梁焊接在一起。
2. 2.Cyc-arc welding is a fast and efficient method for joining metal parts.
   环焊是一种快速且高效的金属部件连接方法。
3. 3. The engineer used a cyc-arc welding torch to repair the damaged area.
   工程师使用环焊焊枪修复了受损区域。