It's difficult to decide the position of the unit in evolutional seriary of magma.
该单元在岩浆演化序列中所处的位1难以确定。
化的,展的It's difficult to decide the position of the unit in evolutional seriary of magma.
该单元在岩浆演化序列中所处的位1难以确定。
The new framework, comprising a pre-trilobite series and three trilobite-dominated series, reflects the major evolutional stages of the life on Earth during Cambrian Period.
新的划分方案包括1个“前三叶
统”和3个“三叶优势统”，反映了寒武纪生命发展的主要阶段。
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，
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