Because a repository service is developing rapidly in the globe,the contents deposited in these repositories are growing violently,the cross-repository service has been become a new means of the repository service.
全球的知识库服务发展很快,而且其内容也在剧增,跨知识库服务已成为一种新颖的服务方式。
参考来源 - 全球跨知识库服务项目及其搜索引擎的分析与研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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