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介绍因特网信息过滤、原理、方式、研究状况;论述因特网信息过滤的意义;简要评介常见的过滤软件;分析和探讨目前因特网信息过滤所存在的问题和今后的发展趋势。
Introduces the Internet information filtering, principles, methods, research status; discusses the significance of Internet information filtering; briefly reviews the common filtering software; analyzes and discusses the current Internet information filtering problems and future trends.