ring fissure

例句：

1. 1. The rock is riddled with ring fissures that could collapse at any moment.
   岩石上布满了环形裂缝，随时可能坍塌。
2. 2.The old building has several ring fissures in its foundation that need to be repaired.
   这座老建筑的地基有几处环形裂缝需要修复。
3. 3. The engineer carefully inspected the ring fissures in the tunnel to ensure safety before starting the excavation.
   工程师仔细检查隧道中的环形裂缝，以确保安全后才开始挖掘。