mud crack polygon

例句：

1. 1. The mud crack polygon was formed by the water flowing through the cracks in the rock.
   泥裂多边形是由水流通过岩石裂缝形成的。
2. 2. The polygon's shape is unique and interesting, making it a popular choice for geometric design.
   多边形的形状独特且有趣，使其成为几何设计中常用的选择。
3. 3. The polygon's edges are smooth and uniform, providing a stable structure for its use in various applications.
   多边形的边缘光滑且均匀，为其在各种应用中的使用提供了稳定的结构。