Sets of data, business logic, and highly interactive UI elements can be downloaded to the client for instant user interaction.

数据集、业务逻辑以及高度交互的UI元素可以被下载到客户机以便进行即时用户交互。

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An activity represents a user interaction, and the class extending the activity class creates a window for a UI.

一个活动代表一次用户交互，它扩展activity类，为UI创建一个窗口。

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You can use Dynamic UI Management to modify a user's content model (and, implicitly, the navigation model) at run time, triggered by a user interaction.

您可以使用 Dynamic UI Management 在运行时修改由用户交互触发的用户内容模型（并隐式修改导航模型）。

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