The main ore-bearing country rocks are aregillaceous limestone and marmarization limestone of upper-middle Cambrian.
其中寒武系上、中统大理化灰、泥质灰要含矿围。
The main ore-bearing country rocks are aregillaceous limestone and marmarization limestone of upper-middle Cambrian.
其中寒武系上、中统大理化灰、泥质灰要含矿围。
声:以上例句、词性由互联网资源自动生成,部未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。