Cretaceous System of Hunan 湖南白垩系
Asian nonmarine cretaceous System 亚洲非海相白垩系
cretaceous depositional system 白垩纪沉积体系
Yakela condensate field put into production in 2005 whose productive series is Cretaceous system.
雅克拉凝析气田于2005年投入开发，生产层系为白垩系。
Analcite mineral was found from rock specimen of cretaceous system in the Ordos Basin via using micro-analysis.
通过微观分析，在鄂尔多斯盆地白垩系钻孔岩样中发现方沸石类矿物。
A large quantity of algae fossils were found in Cretaceous system of southern Songliao basin for the first time.
松辽盆地南部白垩纪首次发现大量藻类化石。
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