以上来源于: WordNet
The ellipsoid model is the first part of a spatial reference system definition.
椭圆体模型是空间引用系统定义的第一部分。
The second is that ArcExplorer requires all spatial columns to have a single spatial reference system assigned.
第二件事情是 ArcExplorer 要求所有空间列指定一个空间引用系统。
Such power has already been demonstrated by the standards and specifications on the Spatial Reference System (SRS).
这种能力已经通过空间引用系统(SRS)的标准和规范得到验证。
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