Offer possible avenues for discovering the answer, such as library research.

向他们指出可能找到答案的途径，例如去图书馆研究。

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But after 20th century, many advanced technologies such as Webservice, GRID appeared. This digital library research topic could go ahead based on these new technologies.

但是在20世纪之后，许多诸如网络服务、网格等先进的技术出现了这项数字图书馆计划的研究课题，终于能在这些新技术的帮助下扬帆远航。

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