secondary orogeny

例句：

1. 1.The secondary orogeny is responsible for the formation of many mountain ranges in the region.
   次级造山运动是该地区形成许多山脉的主要原因。
2. 2. During the secondary orogeny, the Earth's crust was thickened and strengthened.
   在次级造山运动期间，地球的地壳变厚并变得更加坚固。
3. 3. The study of the secondary orogeny provides insights into the evolution of the Earth's crust.
   研究次级造山运动有助于我们了解地球地壳的演化过程。