“subject tree”的概念、定义、翻译、参考文献-科学参考

单词	subject tree
释义	subject tree Encyclopedia 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	drawing machine drawing-making drawing member Drawing Meridian Diagram Drawing of Artifacts Drawing of Features drawing of screw thread drawing of standard part drawing of threaded fastener drawing-room game Drawings and Descriptions of Official School Buildings drawings of lecturing drawing speed drawing square grid with Chinese unit of length Li Drawing sword Drawing Sword Action drawing texture drawing tools drawing without replacement drawing with replacement draw in the chest and keep the back straightt draw loom draw lots drawn ore grade drawnwork

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。