Basic, acidic extrusive and volcanoclastic rocks are known as the main rock types.
石炭纪末期本区的岩浆活
开始,早二叠世晚期和晚二叠世早期是两个主活期。
Basic, acidic extrusive and volcanoclastic rocks are known as the main rock types.
石炭纪末期本区的岩浆活开始,早二叠世晚期和晚二叠世早期是两个主活期。
声明：以上例句、词性分类均由互联网资源自
生成，部分未经过人工审核，其
达内容亦
本软件的观点；若发现问题，欢迎向我们指正。
