Tree security label component: a tree is a collection of elements representing a complex hierarchy having multiple nodes and branches.
树安全标签组件：树是一个元素集合，用于表示有多个节点和分支的复杂层次关系。
Business objects are the primary mechanism for representing business entities, enabling everything from a simple basic object with scalar properties to a large complex hierarchy or graph of objects.
业务对象是用于表示业务实体的主要机制，支持从具有标量属性的简单基本对象到大型复杂层次结构或对象图的任何实体。
And, in many instances, the categories fall along an evolutionary path or hierarchy that proceeds from the simple to the complex.
在许多实例中，这些类别沿着从简单到复杂的演进路径或层次下降。
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