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

单词	directory database
释义	directory database Encyclopedia 管理学电子型信息源释 referral database; directory database指示性数据库存储关于某些机构、人物、出版物、项目、程序和活动等对象的简要描述，指引用户获得信息的数据库。又称指南数据库。
随便看	ballistic transport ballistic transport mechanism ballistic verification of judicature ballistite ballistocardiography ballistospore ball knot ball lens ball line picking ball mill ball mill work index balloelectric Ball of wool ballometer ballonet balloon balloon astronomy balloon-based astronomy balloon-based IR astronomy balloon-based UV astronomy balloon-based X-ray astronomy balloon-based γ-ray astronomy balloon-borne astronomy balloon-borne instrument balloon-borne IR telescope

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。