数据层次结构 meaning in English

data hierarchy

Control . the negative or positive integer value of the
控件基于该节点公开的站点地图数据层次结构。
To provide information about the hierarchical relationship of the data in the outputs , the xml source adds a column in the outputs that identifies the parent element for each child element
为了在输出中提供关于数据层次结构关系的信息， xml源在输出中添加了一个为各个子元素标识父元素的列。