Flowing of underground water along faulted zones in marble eroded and corroded wall rocks and formed underground rivers, which finally created karst caves.
断裂带产生于大理岩之中，地下水沿断层破碎带运移，并对岩石进行浸蚀与溶蚀进而发育地下暗河，冲蚀加剧，最终形成今日看到的溶洞。
Based on the law of energy conservation, the velocity expression of the abrasive flowing along the wall of the round pipe is derived.
根据能量守恒定律，推导出磨料在圆管边壁处的速度表达式。
Based on the law of energy conservation, the velocity expression of the abrasive flowing along the wall of the round pipe is derived.
根据能量守恒定律，推导出磨料在圆管边壁处的速度表达式。
应用推荐