刘于南宋的《静江府城图》是中国古代留存至今的最早、最详细、最完整的以军事为主要功能的城市地图。
Carved during the Southern Song Dynasty, map of Jingjiang Prefectural city is ancient Chinas oldest, most complete and most detailed extant map of a city.
一个在天空上另一个在地面上，在地面上的是一个铭刻有江恩名字的金字塔形方图。
One set is shown in the sky and one set is shown on the earth. Also shown on the earth is a pyramid inscribed with the name of W. D. Gann.
电子江图的研制开发是一个空白点。
To develop the inland waters electronic chart has never been proceeded.
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