You can perform a query of any attribute on the parent or child component of the item and on any field defined in the work package, work node, or process.
可以查询项目的父组件和子组件的任何属性，也可以查询工作包、工作节点或过程中定义的任何字段。
The parent's parent is the node of interest next round and the four prerequisites are checked again from this new node to see whether the above operations need to be performed again.
在下一个循环中，父节点的父节点成了相关节点，再次从此新节点开始检查四个先决条件，查看是否需要再次执行上面的操作。
In general, an element node is the parent of a text node; but here, the predicate essentially de-references the text within an element.
一般来说，元素节点是文本节点的父节点，但这里谓词实际上引用了元素中的文本。
应用推荐