universal tree domain

例句：

1. 1.The universal tree domain is a concept thathas been studied extensively in the field ofcomputer science.
   通用树域是一个在计算机科学领域被广泛研究的概念。
2. 2. The researchers haveproposed a new model for the universal treedomain, which could greatly improve the efficiencyof data processing.
   研究人员提出了一个适用于通用树域的新模型，有望极大提高数据处理的效率。
3. 3. In the universal tree domain, eachnode represents a unique set of attributes andrelationships between them.
   在通用树域中，每个节点代表一组独特的属性及其之间的关联关系。