dilation fissure

例句：

1. 1. The earthquake caused significant damage to the building's foundation, leading to a dilation fissure in the concrete.
   地震导致建筑物基础严重受损，导致混凝土中出现扩张裂缝。
2. 2. The researcher found that the dilation fissure could be caused by the rapid cooling of thematerial after welding.
   研究者发现，焊接后材料的快速冷却可能导致了扩张裂缝的产生。
3. 3. In order to prevent further damage, the engineers had to repair the dilation fissure and reinforce the structure.
   为了预防进一步的损害，工程师们必须修复扩张裂缝并加固结构。