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目前,计算机网络应用已遍及几乎人类活动的一切领域,这一切网络应用实现的核心就是网络协议。详细划分数目繁多的计算机网络协议,说明各个协议是适用范围。
At present, the application of computer network has covered almost all fields of human activities, and all network applications are implemented at the core of network protocols. A detailed breakdown of a large number of computer network protocols, indicating that the agreement is the scope of application.