cretaceous的意思|示意

Only in the tropics were numerous late Cretaceous groups extinguished during peaks in their evolution.

只是热带地区才有大批晚白垩纪生物类群正值其演化的极盛时期突然消亡.

辞典例句

So the researchers resorted to some techniques out of a Cretaceous CSI.

所以科学家只能借助于《犯罪现场调查:白垩纪篇》用到的技术.

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Mineral, palaeontology, middle devonian, permian to early jurassic, and cretaceous.

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.

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The Cretaceous extinction was like a terrible streak of bad luck lasting millions of years.

白垩纪的生物绝灭,犹如一场持续千百万年的可怕厄运.

辞典例句

Cretaceous sandstone and Eogene mudstone are the main reservoir and caprock.

油气从油气田东部注入,由东向西运移并差异聚集,依次形成凝析气藏、带油环凝析气藏和挥发性油藏.

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An image feet of live mainly in Jurassic and cretaceous.

蜥脚形类主要生活在侏罗纪和白垩纪.

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