比方说，xml有元素的顺序序列，而UML没有对概念排序。

For example, XML has ordered sequences of elements but UML does not order all its concepts.

youdao

XML中存在这样的概念：对元素属性采用无序映射，而对嵌套元素使用严格的排序。

XML has the concept of unordered mapping for element attributes, but strict ordering for nested elements.

youdao

我还解释了针对关系的Objectify方法并展示其查询界面，其支持筛选和排序的GAE概念。

I also explained Objectify's approach to relationships and demonstrated its query interface, which supports the GAE notions of filtering and sorting.

youdao

We looked at something called Selection Sort and that too was pretty straightforward, at least conceptually.

例如选择排序,至少从概念上来说，它非常简单。

哈佛公开课 - 计算机科学课程节选