edge welding

例句：

1. 1.The engineer used a special tool to weld the edges of the pipe together.
   工程师使用一种特殊的工具将管道的边缘焊接在一起。
2. 2.During the construction process, it's important to ensure that the edges are properly sealed to prevent leaks.
   在施工过程中，确保边缘密封得当以防止泄漏是很重要的。
3. 3.The welding technique is crucial for ensuring the structural integrity of the bridge.
   焊接技术对于确保桥梁的结构完整性至关重要。