媒介查询在CSS3中被添加，它可以让出现的内容被裁剪到一个输出设备的明确的范围内，而不用改变内容本身。
Media queries, added in CSS3, let the presentation of content be tailored to a specific range of output devices without having to change the content itself.
首先，20gb PS 3只提供了一个模拟复合r ca插口，用来连接电视之类的模拟输出设备。
First of all, the 20gb PS3 only comes with an analog composite RCA plug for attaching to TV-like output devices.
这种解决方案需要调用多个输出设备(在许多系统中，Festival和MPlayer等程序可以将输出发送到特定的设备)或者在一个设备上协调输入。
This solution would call for multiple sound output devices (on many systems, programs such as Festival and MPlayer can direct the output to a specific device) or coordinated input to one device.
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