edge seam welding

例句：

1. 1.The welding process is critical for the structural integrity of the bridge.
   焊接过程对于桥梁的结构完整性至关重要。
2. 2. The engineer used a special welding technique to repair the damaged area.
   工程师使用一种特殊的焊接技术来修复受损区域。
3. 3. The welding operation was completed successfully, and the inspection revealed no defects.
   焊接操作成功完成，检查未发现任何缺陷。