Variable bit rate (VBR) and constant bit rate (CBR).

可变比特率（VBR）和恒定比特率（CBR）。

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The result shows that this algorithm achieves both higher PSNR and higher subjective visual quality in either the CBR case or the VBR case.

实验结果表明，所提出的方法无论是在CBR还是VBR下，码率控制都相当准确，并且能获得较高的峰值信噪比（PSNR）和主观视觉质量。

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Its basic component is a terminal-to-terminal connected communicating network, which use Asynchronous Transfer Model (ATM) and can realize constant bit rat (CBR) and variable bit rat (VBR).

它的基本组成部分是一个采用异步转移模式(atm)交换的能实现固定比特率(CBR)和可变比特率(VBR)的端至端连接的通讯网。

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