three-point bond

例句：

1. 1. This three-point bond is strong enough to hold the heavy books together.
   这种三点粘合剂足够强，能将厚重的书牢固地粘合在一起。
2. 2.The engineer used a three-point fastener to secure the new roof.
   工程师使用三点式紧固件来固定新屋顶。
3. 3. The carpenter used a three-point clip to attach the wooden planks together.
   木匠使用三点式夹子将木板牢固地连接在一起。