欲进入该谱系工作，请从图表目录中选定一个图表，或从列表中选用个人列表，或用搜索功能找出你需要的人物或地点去开始。
To begin working with the data, choose one of the charts from the charts menu, go to the Individual list, or search for a name or place.
它方便获得当地和分布式地理空间信息目录，提供可立即下载的数据、图表和文件。
It enables easy access to local and distributed geospatial information catalogues and makes available data, graphics, documents for immediate download.
它方便获得当地和分布式地理空间信息目录，提供可立即下载的数据、图表和文件。
It enables easy access to local and distributed geospatial information catalogues and makes available, data, graphics and documents for immediate download.
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