joint squaring tool

例句：

1. 1.We used a joint squaring tool to level the floor.
   我们用接头对角工具来平整地板。
2. 2.The engineer measured the angle of the joint with a joint squaring tool.
   工程师用接头对角工具测量了接头的角度。
3. 3.The carpenter used a joint squaring tool to mark the wood for cutting.
   木匠用接头对角工具来标记木材以便切割。