elliptical crack

例句：

1. 1. The rock was severely damaged by the elliptical cracks in the mountain.
   山中的椭圆裂缝严重损坏了岩石。
2. 2.The engineer carefully inspected the elliptical cracks on the bridge to ensure its safety.
   工程师仔细检查了桥上的椭圆裂缝以确保其安全。
3. 3. The physicist discovered an elliptical crack in the sample, which could be a sign of weakness.
   物理学家在样本中发现了一个椭圆裂缝，这可能是弱点的迹象。