It has become an important subject for how to improve the security, opening and inter-operation of the information in the enterprise-spanning electronic document exchanging system.

在跨越企业边界的电子公文交换系统中，如何提高信息的安全性、开放性和互操作性是一个重要的研究课题。

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This system, in one way, can backup, monitor and recover the web page automatically, in the other way, it can backup, monitor electronic document for the sake of its security.

它既可用来备份、监控、自动恢复网站的主页，也可用来备份、监控电子文档，防止对电子文档的篡改。

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This system, in one way, can backup, monitor and recover the web page automatically, in the other way, it can backup, monitor electronic document for the sake of its security.

它既可用来备份、监控、自动恢复网站的主页，也可用来备份、监控电子文档，防止对电子文档的篡改。

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