welding by forging

例句：

1. 1.The welding process is crucial 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 engineers were able to successfully weld the two pieces together.
   工程师们成功地将两块材料焊接在一起。
3. 3.The welding torch was used to repair the damaged area on the car.
   焊枪被用来修复汽车损坏的区域。