thermal welding

例句：

1. 1. The process of thermal welding is crucial for the integrity of the structure.
   热焊接过程对于结构完整性至关重要。
2. 2.In this case, the thermal welding method was used to join the two pieces together.
   在这种情况下，使用热焊接方法将两块材料连接在一起。
3. 3. The thermal welding process involves heating the metal and then quickly cooling it to form a strong bond.
   热焊接过程涉及加热金属并迅速冷却以形成牢固的结合。