spot welding fixture

例句：

1. 1. The spot welding fixture is used to connect two pieces of metal together.
   点焊夹具用于将两块金属连接在一起。
2. 2. The engineer used the spot welding fixture to fix the damaged part of the machine.
   工程师使用点焊夹具来固定机器损坏的部分。
3. 3. The spot welding fixture was designed to make the assembly process faster and more efficient.
   点焊夹具的设计目的是为了使装配过程更快更高效。