laser welding

例句：

1. 1.The laser welding process is used to join metal parts together quickly and efficiently.
   激光焊接过程用于快速且高效地连接金属部件。
2. 2. Laser welding has become a popular technique for joining small parts together.
   激光焊接已成为连接小型零件的流行技术。
3. 3.During the welding process, the laser beam heats up the material and fuses it together.
   在焊接过程中，激光束加热材料并使其融合在一起。