Vertically, 3sets of source rocks including the Lower Cambrian, the Middle-o-Upper Ordovician-Lower Silurian and the Permian were developed in Chinese Paleozoic Marine basins.

研究认为中国古生代海相盆地在纵向上主要发育下寒武统、中上奥陶统—下志留统和二叠系3套烃源岩。

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In Upper Bann, Sinn Fein's John O'Dowd has been elected with 6, 649 first preference votes.

BBC: Former Assembly Speaker criticises poll count system

Although the upper echelons at FarEasTone speak English, Mr O'Konek cannot address many of his other employees without a translator.

ECONOMIST: Tongue-twisters