centre joint

例句：

1. 1.The new design of the car has a more elegant centre joint.
   这款汽车的新设计有一个更优雅的中心接头。
2. 2. The engineer carefully checked the centre joint to ensure it was secure.
   工程师仔细检查了中心接头，确保它牢固。
3. 3. The construction team had to replace the worn-out centre joints on the bridge.
   建筑队不得不更换这座桥上磨损的接头。