prelacy

例句：

1. 1.The material was found to have prelacy in the welding area.
   该材料在焊接区域发现了预裂纹。
2. 2.The engineers were concerned about the potential for prelacy in the structure.
   工程师们担心结构中可能存在预裂纹。
3. 3.The investigation revealed that the prelacy had been caused by a combination of factors.
   调查发现，预裂纹是由多种因素引起的。