dichogeny

例句：

1. 1. The study of rocks andtheir formation is known as geology.
   研究岩石及其形成过程被称为地质学。
2. 2. The earth's crust is the base of allgeological structures.
   地球的地壳是所有地质构造的基础。
3. 3. The dichogenyof the Earth's crust is akey factor in understanding its evolution.
   地球地壳的地质构造是理解其演化的关键因素。