The main reservoir in the lower Shanxi Formation (Lower Permian) is composed of quartz sandstones in Changbei Block of the Yulin Gas Field in the east Ordos Basin.是什么意思_The main reservoir in the lower Shanxi Formation (Lower Permian) is composed of quartz sandstones in Changbei Block of the Yulin Gas Field in the east Ordos Basin.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句