中文摘要：

为网络隔离与信息交换系统（ISOX）定义一个具有通用意义的抽象结构,并以此为基础从理论上研究网络隔离与信息交换系统的工作原理、安全作用和实用价值。用ISOX连接内网和外网,或者可以实现内网与外网的有效隔离,或者可以实现内网与外网间的实时信息交换,但难以在实现有效隔离的同时实现实时信息交换。

英文摘要：

A general-purpose abstract architecture is defined for Network Isolation and Information Exchange systems（ISOX）. The working principles, security functionality and practical values of these systems are investigated theoretically based on that architecture. When the inner net and the outer net are connected with ISOX, the effective isolation or the information exchange in real time between the inner net and the outer net maybe work, but it is hard to conduct the real time information exchange when the effective isolation is on.