在电信管理网(TMN)五层网络管理模型中，网元层和网元管理层是非常重要的两层。

In the telecommunication management network (TMN) with five network managements model, network element and network element management level is most important.

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随着电信网络的飞速发展，电信管理网的作用和地位变得越来越重要。

With the fast development of Telecom Network, the station and the function of the Telecom Management Network become more and more impotent.

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