spot-weld

例句：

1. 1.The carpenter used a spot-weld to attach the wooden planks together.
   木匠用点焊将木板连接在一起。
2. 2.The construction worker applied a spot-weld to reinforce the weak spot in the beam.
   建筑工人在梁的薄弱处应用了点焊来加固。
3. 3. During the assembly process, it's important to spot-weld all the joints to ensure they are secure and won't come loose later.
   组装过程中，确保所有接合部位都进行点焊非常重要，以确保它们牢固且不会在后期松动。