Usually, the database itself contains no information about its geodetic datum, so you must find this out from the application that created the coordinates.
数据库本身往往不包含关于大地基准点的信息，所以您必须从创建坐标的应用程序中查明大地基准点。
Usually, , the database itself contains no information about its geodetic datum, so you must findthis out from the application that created the coordinates.
数据库本身往往不包含关于大地基准点的信息，所以您必须从创建坐标的应用程序中查明大地基准点。 。
During the construction of geodetic data sharing platform, many kinds of new techniques will be used, such as network technique, database technique and integration technique.
在大地测量数据共享平台的建设过程中，需要运用到网络技术、数据库技术、集成技术等多种新技术。
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