Taking two examples, matching spatial features and their attributes and deleting reduplicate features in spatial database, indicate the technique key point of this appro.
分别以空间要素与其属性挂接和删除重复要素为例，来说明该方法的技术要点。
Taking two examples, matching spatial features and their attributes and deleting reduplicate features in spatial database, indicate the technique key point of this appro.
分别以空间要素与其属性挂接和删除重复要素为例，来说明该方法的技术要点。
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