名词
中文翻译：主要地壳缝合线
同义词：
['principal geosynclinal trough', "primary geosyncline例句：1. The primary geosyncline is the deepest part of the Earth's crust.（主要地壳缝合线是地球地壳最深处。）"]
例句：
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1. The primary geosyncline is the deepest part of the Earth's crust.
主要地壳缝合线是地球地壳最深处。
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2.The primary geosyncline is responsible for the formation of the continental crust.
主要地壳缝合线负责形成大陆地壳。
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3.The primary geosyncline is a key area for studying the Earth's tectonic plates.
主要地壳缝合线是研究地球板块构造的关键区域。