propagating crack

例句：

1. 1.This material is prone to propagating cracks when exposed to high humidity.
   这种材料在高湿度下容易传播裂缝。
2. 2.The researcher found that the propagating cracks in the concrete were due to the freeze-thaw cycle.
   研究人员发现混凝土中的传播性裂缝是由于冻融循环造成的。
3. 3. The engineer designed a system to prevent propagating cracks in the building's foundation.
   工程师设计了一个系统来防止建筑物基础的传播性裂缝。