The research work consequently experienced geosyncline theory period and plate tectonics theory period.

以后的研究经过了地槽理论阶段和板块构造理论阶段。

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And that supports the idea that plate tectonics was in motion.

这一结论也支持了板块结构一直在运动的理论。

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And that supports the idea that plate tectonics was in motion.

这一结论也支持了板块结构一直在运动的理论。

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