It is expressed through both atomic (such as and) and compound (such as, and) controls.
它是通过同时使用原子控件(如和)和复合控件(如、和)来表示的。
2
Atomic components are the actual widgets that developers can use to populate a form, while compound UI components are used to organize and group atomic objects.
原子组件是实际的窗口组件，开发人员可用它来填充表单，组合UI组件则可用来对原子对象进行组织和分组。
3
As mentioned earlier, both atomic and compound controls are not bound to a particular presentation as their HTML counterparts are, but are instead associated with a particular abstract purpose.