welted joint

例句：

1. 1.The engineer used a special tool to weld the joints together.
   工程师使用一种特殊的工具将接头焊接在一起。
2. 2. The car was fixed with a new welted joint.
   汽车被一个新的焊接接头修理好了。
3. 3. The construction workers carefully welded the joints of the beams.
   建筑工人仔细地焊接了梁的接头。