push welding

例句：

1. 1. The process of push welding is crucial for the structural integrity of the metal.
   推焊过程对于金属的结构完整性至关重要。
2. 2. In this particular application, push welding was used to join two pieces of metal together.
   在这个特定的应用中，推焊被用来将两块金属连接在一起。
3. 3. The engineer carefully monitored the progress of the push welding operation to ensure a strong bond between the pieces.
   工程师仔细监控推焊操作的进展，以确保两块金属之间有牢固的结合。