crack detector

例句：

1. 1.The crack detector was used to detect the hidden cracks in the wall.
   裂纹探测器被用来检测墙壁中的隐藏裂缝。
2. 2.The crack detector helped us find the source of the leaky pipe.
   裂纹探测器帮助我们找到了漏水管道的源头。
3. 3. The crack detector is an essential tool for inspecting buildings for structural integrity.
   裂纹探测器是检查建筑物结构完整性的重要工具。