“directory search engine”的概念、定义、翻译、参考文献-科学参考

单词	directory search engine
释义	directory search engine Encyclopedia 管理学目录型搜索引擎释 directory search engine目录型搜索引擎以人工方式或半自动方式搜集信息资源，由编辑人员对信息资源进行分门别类，并放置到事先确定的、具有层级关系的类目体系中形成的检索系统。又称网络资源指南。
随便看	health effect of secondary water supply health effect of stink health effects of ambient particulate matter pollution health effects of ammonia health effects of arsenic pollution health effects of atmospheric pollution health effects of cadmium pollution health effects of carbon dioxide health effects of carbon monoxide pollution health effects of chromium health effects of cold environment health effects of cyanide health effects of dioxins health effects of dust health effects of dust mite health effects of electromagnetic radiation health effects of endocrine disrupting chemicals health effects of environmental pollutant health effects of environmental pollution on children health effects of environmental pollution on elderly people health effects of environmental pollution on occupational health effects of environmental pollution on pregnant woman health effects of environmental pollution on susceptible population health effects of fluorine health effects of food agricultural chemicals residues

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。