quasi-oceanic crust

例句：

1. 1. The study of the quasi-oceanic crust is crucial for understanding the Earth's past and present.
   研究准大洋地壳对于理解地球的过去和现在至关重要。
2. 2. The composition of the quasi-oceanic crust plays a significant role in shaping the Earth's geological features.
   准大洋地壳的成分在塑造地球地质特征方面起着重要作用。
3. 3. The discovery of new minerals within the quasi-oceanic crust has led to advancements in the field ofgeophysics.
   在准大洋地壳中发现的新矿物，推动了地球物理学领域的进步。