常見(jiàn)例句用作名詞 (n.)This paper gives descriptions to biostratigraphy of Cretaceous sedimentary basins and egg fossils from these basins.文中介紹了我國(guó)白堊紀(jì)幾個(gè)沉積盆地的生物地層和一些具有特色的蛋化石種類。 返回 biostratigraphy