“联机帮助主题”概念、定义、翻译-科学时代

单词	联机帮助主题
释义	图书馆、情报与文献学词汇手册联机帮助主题 online help topic
随便看	preferred stock preferred stock preferred stock preferred stock preferred stock preferred stock dividend preferred stockholder preferred stock sinking fund preferred supplier prefetch prefiled prefilming prefilming agent prefilter pre-filter prefilter prefilter prefilter prefiltering prefiltration prefinishing diamond prefinishing oval prefinishing pass prefinishing stand prefire operation

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。