经过对数据模型的转换以及专题制图要素的处理，建立了海洋底质专题数字图成图系统。

After transformation of the data model and processing of the thematic mapping elements, the paper constructs a mapping system of the seabed sediment thematic.

youdao

经过对数据模型的转换以及专题制图要素的处理，建立了海洋底质专题数字图成图系统。

After transformation of the data model and processing of the thematic mapping elements, the paper constructs a mapping system of the seabed sediment thematic.

youdao