The sedimentary facies of Mesoproterozoic in Yanshan aulocogen is regarded as coastal to shallow sea region for a long time.是什么意思_The sedimentary facies of Mesoproterozoic in Yanshan aulocogen is regarded as coastal to shallow sea region for a long time.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句