查询词典 Cretaceous

The major scientific achievements of this study are as follows:1.Important angiospermae pollen fossils such as Quantonenpollis,Cranwellia,Scollardia, Lythraites,Xinjiangpollis,Gothanipollis,Triporopollenites and angiospermae fossils as Platanus septentrionalis,Trapa angulata have been obtained from the Quantou Formation. They are Late Cretaceous in age.

获得的主要认识如下：1、泉头组产有晚白垩世重要的被子植物花粉化石Quantonenpollis，Cranwellia，Scollardia，Lythraites，Xinjiangpollis，Gothanipollis，Triporopollenites等和晚白垩世被子植物化石Platanus septentrionalis，Trapa angulata等。

Any of several four footed herbivorous horned dinosaurs with enormous beaked skulls of the late Cretaceous in North America and Mongolia .

几种四食草性长角的恐龙，巨大的颅骨呈嘴；生活在后白垩纪的北美和蒙古。

Any of several four-footed herbivorous horned dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia

它是被拍卖的两个野牛龙中的其中一个，其他这种角龙标本是一种更大的称做森雅的标本。。。。

Any of several four footed herbivorous horned dinosaurs with enormous beaked skulls of the late Cretaceous in North America and .

几种四足草性长角的恐龙，巨大的颅骨呈鸟嘴状；生活在后白垩纪的北美和。

Any of several four-footed herbivorous horned dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia.

几种四足食草性长角的恐龙，巨大的颅骨呈鸟嘴状；生活在后白垩纪的北美和蒙古。

This website is dedicated to Cretaceous fossils from the USA and around the world: ammonoids, dinosaurs, nautiloids, belemnites, plesiosaurs, etc. CretaceousFossils.com is designed to be a dinosaur age fossil identification site.

该网站致力于美国及世界各地白垩纪化石资料收集及相关研究，有菊石、恐龙、鹦鹉螺目软体动物、箭石、蛇颈龙等化石介绍。

Massive herbivorous bipedal dinosaur with a long heavy tail; common in Europe and North Africa; early Cretaceous.

身体大而重的食草恐龙，尾巴又长又重；常见于欧洲和北部非洲；生活在白垩纪早期。

There are two branches stretched into China from Tethys during Cenomanian–Turonian in the Cretaceous, including the south branch, where occurred OAE2 in the Tibetan region, and north branch, where existed OAE2 in the southwestern of Tarim Basin too, thus it provided another evidence for OAE2's globality.

白垩纪Cenomanian-Turonian时期古特提斯海伸向我国的南北两个分支，其南支在西藏地区存在OAE2大洋缺氧事件，而北支在塔里木盆地西部也存在OAE2事件，这对丰富我国白垩纪事件研究、进行全球白垩纪OAE2大洋缺氧事件对比及其成因机制的探讨、查清塔里木盆地白垩纪古环境和烃源岩大规模形成的古气候控制因素以及白垩纪海相生物群演化、更替及其与重大地质事件的联系等具重要意义。

The major source rocks in the Chagan sag are composed of the second member of the Bayingebi Formation of Lower Cretaceous.

查干凹陷火山岩油藏的主力烃源岩为下白垩统巴音戈壁组二段；储集空间是原生孔隙和原生裂缝，局部为由于后期溶蚀作用产生的溶蚀孔隙和构造作用形成的构造裂缝；苏红图二段的棕红色泥岩是主力盖层。

Lower Cretaceous in Chagan Depression developed mainly volcanic and clasticrock reservoirs.

查干凹陷下白垩统主要发育碎屑岩和火山岩两种储层，以碎屑岩储层为主。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。