本文主要是对城域网中一种新型的数据传输技术—弹性分组环（RPR），进行了详细地探讨和深入地研究。

In this paper, one new data transport technology named Resilient Packet Ring (RPR) in metropolitan area networks is discussed and anayzed in a great extend.

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弹性分组环(rpr)被认为是重建城域网以满足新业务需求的替代方式。

Resilient Packet Ring (RPR) is regarded as the substitution to re -build man to meet the demand.

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