As Shengli Chengdao subtidal oil field is exploited and its associated gas with crude oil mounts up.The gas gradually bears enough economic value to export.是什么意思_As Shengli Chengdao subtidal oil field is exploited and its associated gas with crude oil mounts up.The gas gradually bears enough economic value to export.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句