相反，AAL功能是由在UNI用户侧的用户网络终端设备实现的。

Rather, AAL functions are performed by the user's network terminating equipment on the user side of the UNI.

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这种系统由于采用的是非标准网络终端设备，其缺点是价格昂贵、维护困难、不便于产品的升级换代。

Because of the nonstandard network terminal device, this kind of system has many disadvantages such as high price, difficult maintenance and inconvenient updating.

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在终端设备上获得一个非依赖性的网络体验，需要强大的内存（≥64MB）和强大的CPU。

Getting a no-compromise web experience on devices requiressignificant memory (>=64MB) as well as significant CPU horsepower.

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