名词
中文翻译：闭合的地壳
同义词：
['closed crust', "closed craton例句：1. The closed geodesic is a rare mineral that has been found in the deepest part of the Earth's crust.（闭合的地壳是一种在地球最深处被发现的稀有矿物。）"]
例句：
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1. The closed geodesic is a rare mineral that has been found in the deepest part of the Earth's crust.
闭合的地壳是一种在地球最深处被发现的稀有矿物。
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2.The study of closed geodesics is essential for understanding the structure and behavior of the Earth's crust.
研究闭合的地壳对于理解地球的结构和行为至关重要。
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3. The closed geodesic is also used in geological surveying to map the distribution of minerals and rocks.
闭合的地壳还在地质调查中用于绘制矿物和岩石的分布图。