The IComponent interface is the fundamental contract between the design-time environment and an element to be hosted on a design surface (such as the Visual Studio forms designer).
IComponent 接口是设计时环境和要在设计图面（例如，Visual Studio 窗体设计器）上承载的元素之间的基本协定。
The design-time environment uses the IDictionaryService on every site to maintain a data table that is used throughout the designer framework.
设计时环境使用每个站点上的 IDictionaryService 来维护在整个设计器框架中使用的数据表。
The design-time environment provides a forms designer and a properties editor to allow you to manipulate components and build user interfaces.
设计时环境提供了一个窗体设计器和一个属性编辑器，以使您可以操纵组件和生成用户界面。
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