relational tree

例句：

1. 1.The relational tree is a visual representation of the relationships between different elements in a system.
   关系树是系统不同元素之间关系的视觉表示。
2. 2.In this case, the relational tree helps us to understand the complex relationships between the different parts of the system.
   在这种情况下，关系树帮助我们理解系统不同部分之间的复杂关系。
3. 3.The relational tree can be used to model the relationships between different types of data and their interactions.
   关系树可以用来建模不同类型的数据及其相互作用的关系。