faulted joint

例句：

1. 1. The car's engine has a faulted joint that needs to be fixed.
   这辆汽车的引擎有一个需要修理的故障接头。
2. 2.The construction worker had to repair the faulted joint in the wall.
   建筑工人不得不修复墙上那个故障接头。
3. 3. The engineer found the faulted joint and replaced it with a new one.
   工程师发现了那个故障接头，并把它替换成了一个新的。