“主题树”的概念、定义、翻译、参考文献-科学参考

单词	主题树
释义	主题树 Encyclopedia 管理学信息分类释 topic tree主题树将信息资源按照某种事先确定的概念体系分门别类的逐层加以组织的方法。管理学主题树释 subject tree主题树将信息资源按照某种事先确定的概念体系结构，分门别类地逐层加以组织，用户通过浏览的方式逐层加以选择，层层遍历，直至找到所需要的信息线索（相关站点链接），并通过信息线索直接找到相应的网络信息资源。
随便看	health risk assessment health risk assessment for site health risk assessment of EMF health risk factors appraisal health safety and environment management system health savings accounts health security system Health Service health service cost health service demand function health service informatization health serviceman health service market health service organization health service price health services research Health service statistics health service support Health service survey health service training health standard for aquatic animals health standards Health statistical methods Health statistical survey system Health Statistics

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。