黄河古地图地理信息解译及数字化研究: 以《山东黄河下游之图》为例
*
杨圣奎
1,
2
Interpretation and digitization of geographic information of the Yellow River ancient map: taking the
Map of the Lower Yellow River in Shandong Province
as an example
YANG Shengkui
1,
2
数据库符号化示意图