weld edge

例句：

1. 1.The welding process is crucial for the integrity of the joint.
   焊接过程对于接头的完整性至关重要。
2. 2. The engineer carefully measured and marked the weld edge to ensure accuracy.
   工程师仔细测量并标记了焊缝边缘，以确保准确性。
3. 3. During the installation, it's important to align the weld edges properly to avoid future issues.
   在安装过程中，正确地对齐焊缝边缘非常重要，以避免未来的问题。