“Online Public Access Catalog”的概念、定义、翻译、参考文献-科学参考

单词	Online Public Access Catalog
释义	Online Public Access Catalog Encyclopedia 管理学联机公共检索目录（OPAC）释 Online Public Access Catalog; OPAC联机公共检索目录由图书馆提供给读者查询其馆藏数据的联机目录检索系统。
随便看	downhole pressurized jet assisted drilling system downhole throttling method downhole throttling technology down-hole tool Downing Park down-ladder down-ladder operator downlead down-leg light time downlink download down mattres down pillow downpour down-punching type down quark downsampling downshift down shot downsized engine Downsizing downsizing downslope wind Down's syndrome downstep

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。