crustal low-velocity zone

例句：

1. 1.Crustal tectonics is the study of the Earth's crust.
   地壳构造学是研究地球地壳的研究。
2. 2. The crustal plate boundary is a major factor in earthquakes.
   地壳板块边界是地震的主要因素。
3. 3.Crustal uplift is a process where the upper layers of the Earth's crust are lifted upwards.
   地壳抬升是一种过程，其中地球地壳的上层被抬起向上。