Remember, the controller determines the type of content to render based on that header.

记住，控制器根据这个头决定内容的类型。

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When a client device requests the page, WebSphere Portal first detects the type of the device and then assembles the portlets, which each render their contents for that particular device.

当客户设备请求页面时，WebSphere portal首先检查设备的类型，然后组合portlet，每个portlet都会为该具体设备生成其内容。

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The example application stores the type of the screen to display as a render parameter, and the content of the shopping cart (the number of stocks) as a session parameter.

该示例应用程序将要显示的屏幕类型作为呈现参数存储，将购物车的内容(股票的数量)作为会话参数存储。

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This makes them a particularly powerful form of advertising as no technology will be invented that will render these type of ads obsolete.

FORBES: Analyst Says Video Game Advertising Will Double by 2016