dapped joint

例句：

1. 1.The car's dapped joints are smooth and easy to drive.
   这辆车的凹凸接头平滑且易于驾驶。
2. 2.The old house has several dapped joints that need repairing.
   这所旧房子有几个需要修理的凹凸接头。
3. 3.The engineer carefully inspected the dapped joints of the bridge before starting work.
   工程师在开始工作前仔细检查了桥梁的凹凸接头。