metaplasia of intestinal epithelium

例句：

1. 1. The patient's skin was undergoing a process of metaplasia.
   患者的皮肤正在经历一种转化过程。
2. 2. The researcher discovered that the metamorphic rocks wereformed under extreme conditions.
   研究者发现，这些变质岩是在极端条件下形成的。
3. 3. The metamorphic minerals have unique properties that make themuseful in various applications.
   这些变质矿物具有独特的性质，使其在各种应用中非常有用。