Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/41ddd8719fd842716a4f2481d20e0dd7.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 biostratigraphy是什么意思，biostratigraphy的翻译，biostratigraphy音标、读音、用法和例句_沉淀汉英词典
This paper gives descriptions to biostratigraphy of Cretaceous sedimentary basins and egg fossils from these basins. 文中介绍了我国白垩纪几个沉积盆地的生物地层和一些具有特色的蛋化石种类。