“泥盆纪”造句

泥盆纪末期,30%的动物物种都灭绝了。
Near the end of Devonian times, thirty percent of all animal life vanished.

收藏矿物 、 古生物学 、 中泥盆纪 、 二叠纪到早期的侏罗纪和白恶纪.
Mineral, palaeontology, middle devonian, permian to early jurassic, and cretaceous.

泥盆纪(系)或泥盆纪(系)的沉积矿系体系.
The Devonian Period or its system of deposits.

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