View on the Correlation and Demarcation of the Ordovician Series in the Southwestern Margin Region of Ordos Basin and the Significance of Petroleum Exploration in Central-Western Part of China是什么意思_View on the Correlation and Demarcation of the Ordovician Series in the Southwestern Margin Region of Ordos Basin and the Significance of Petroleum Exploration in Central-Western Part of China在线翻译_英语_读音_用法_例句