Chapter one describes the classification and form of the network-security systems, analyzes the advantage and disadvantage of all kinds of defense measures.
本文的第一章，着重介绍了网络安全防御系统的分类和表现形式。
Chapter one describes the classification and form of the network-security systems, analyzes the advantage and disadvantage of all kinds of defense measures.
本文的第一章，着重介绍了网络安全防御系统的分类和表现形式。
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