cretaceous
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adj. 白垩纪的；似白垩的
n. 白垩纪；白垩系
adj.
白垩的，白垩纪的；
n.
白垩纪，白垩系；
英英释义
cretaceous[ kri'teiʃəs ]
n.from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants
同义词：Cretaceous period
adj.
abounding in chalk
of or relating to or denoting the third period of the Mesozoic era
词组短语
cretaceous period白垩纪
双语例句
用作形容词(adj.)
The story takes place 6500 years ago in the late Cretaceous period.
故事发生在6500万年前的白垩纪晚期。
用作名词(n.)
From the Cretaceous, Tarim basin began the new evolutional stage of foreland basin.
从白垩纪初期开始
权威例句
Cretaceous-Tertiary boundary event: Evidence for a short time scaleA BOTANICAL INDEX OF CRETACEOUS AND TERTIARY CLIMATES
Extraterrestrial Cause for the Cretaceous-Tertiary Extinction
Impacts of the Cretaceous Terrestrial Revolution and KPg extinction on mammal diversification.
EXTRATERRESTRIAL CAUSE FOR THE CRETACEOUS-TERTIARY EXTINCTION: EXPERIMENT AND THEORY
Nature and significance of the Early Cretaceous giant igneous event in eastern China
A new geomagnetic polarity time scale for the Late Cretaceous and Cenozoic
The Theropod Ancestry of Birds: New Evidence from the Late Cretaceous of Madagascar
Revised calibration of geomagnetic polarity time scale for the Late Cretaceous and Cenozoic
Exhumation of the ultrahigh-pressure continental crust in east central China: Cretaceous and Cenozoic unroofing and the Tan-Lu fault
cretaceous (adj.)
1670s, "chalky," from Latin cretaceus "chalk-like," from creta "chalk." As a geological period (with a capital C-), it was first used 1832. The extensive chalk beds of southeastern England were laid down during the Cretaceous.
1. 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。
-- 来源 -- 英汉 - 辞典例句
2. gigantic carnivorous bipedal dinosaur of the Jurassic or early Cretaceous in Europe.
侏罗纪或白垩纪早期欧洲巨大的食草性两足恐龙。
-- 来源 -- 汉英 - 翻译参考
3. The stippled area shows the distribution of a clean, permeable sandstone in the lower part of the lower cretaceous Muddy Formation.
图上画点部分为下白垩纪马迪组下部洁净，渗透的砂岩分布区域。
-- 来源 -- 英汉 - 辞典例句
4. Cretaceous System
白垩系
-- 来源 -- 英汉 - 短句参考
5. The term is used at various localities in North Africa, includes beds ranging from Carboniferous to Early Cretaceous.
在北非不同的地方使用这个名称，包括从石炭纪到早白垩纪的地层。
-- 来源 -- 英汉 - 辞典例句
6. From the view of stratigraphy, they all belong to the Cretaceous period.
从地层学上看，它们都属于白垩纪。
-- 来源 -- 汉英 - 翻译参考
7. 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。
-- 来源 -- 英汉 - 辞典例句
8. primitive reptile-like fossil birds of the Jurassic or early Cretaceous.
侏罗纪和白垩纪初的与爬行动物相似的远古化石鸟类。
-- 来源 -- 汉英 - 翻译参考
9. duck-billed dinosaurs; upper Cretaceous.
鸭嘴龙；活跃于晚白垩纪。
-- 来源 -- 汉英 - 翻译参考
10. Cretaceous Period
白垩纪
-- 来源 -- 英汉 - 短句参考
cretaceous
