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The research work consequently experienced geosyncline theory period and plate tectonic theory period.
以后的研究经过了地槽理论阶段和板块理论阶段。
youdao
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The research work consequently experienced geosyncline theory period and plate tectonic theory period.
以后的研究经过了地槽理论阶段和板块理论阶段。
youdao