事实上，很多程序的比特率数据是不可用的。
In fact, bitrate data for many applications simply isn't available.
正如你看的的，大多数流媒体服务在移动设备上使用类似的比特率，根据可用带宽限制在64lbps和128kbps间跳转。
As you can see, most streaming services use similar bitrates on mobile devices, jumping between 64kbps and 128kbps depending on the available bandwidth.
举个简单的例子，让我们看看一些最流行的流媒体的音频比特率和现今的智能手机上可用的音乐服务。
For a simple example, let's take a look at the audio bitrates for some of the most popular streaming radio and music services available on smart phones today.
本协议可用于两个低比特率多媒体终端之间，或一个低比特率多媒体终端与一个多点控制单元或一个交互操作适配器之间。
This protocol can be used between two low bit rate multimedia terminals, or between a low bit rate multimedia terminal and a multipoint control unit or an interworking adapter.
本协议可用于两个低比特率多媒体终端之间，或一个低比特率多媒体终端与一个多点控制单元或一个交互操作适配器之间。
This protocol can be used between two low bit rate multimedia terminals, or between a low bit rate multimedia terminal and a multipoint control unit or an interworking adapter.
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