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来源:雅诚德英语网
This article introduced the NGN production background and the concept, propose the NGN core technology and the service.
本文介绍了NGN的产生背景和概念,提出NGN的核心技术和业务。
This article introduced the NGN production background and the concept, propose the NGN core technology and the service.
本文介绍了NGN的产生背景和概念,提出NGN的核心技术和业务。