基础释义
例句

福克斯词典 \ 英汉词典 \

Ordovician是什么意思？

Ordovician

例句

The Cambrian - Ordovician strata in Luxi Block are very continuous and well exposed. 鲁西地块的寒武 - 奥陶纪地层出露连续,露头较好.
Bryozoa was quite diversified in the Ordovician, but lacked fossil records in the Cambrian. 古生物学资料表明,虽然苔藓动物的大多数类群在奥陶纪已经分化出来, 但它在寒武纪却缺乏任何化石记录.
The Ordovician lithofacies and biofacies change greatly at different localities of the Yangtze Region, South China. 华南扬子区不同地点奥陶纪的岩相、生物相变化显著.

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