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1.The study of the sabstratum is crucial for understanding the Earth's internal structure.
研究地壳对于理解地球内部结构至关重要。
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2.The scientists are conducting experiments on the sabstratum to uncover new insights into plate tectonics.
科学家们正在对地壳进行实验，以揭示板块构造的新见解。
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3. The sabstratum is a layer that separates the crust from the mantle, and it plays a vital role in shaping the Earth's surface features.
地壳和地幔之间存在一个分隔层，称为地壳，它对塑造地球表面特征起着至关重要的作用。