flat-joint jointed

例句：

1. 1. The flat-joint between the two pieces of wood is where they fit together.
   两块木头之间的平接接头是它们相连接的地方。
2. 2.The engineer used a special tool to make the flat-joint more secure.
   工程师使用特殊的工具使平接接头更加牢固。
3. 3.The flat-joint was designed to allow for easy movement and adjustment.
   这个平接接头设计成可以方便移动和调整。