“专利申请维持年费”概念、定义、翻译-科学时代

单词	专利申请维持年费
释义	法学词汇手册专利申请维持年费 annual maintenance fee of an application
随便看	play age play agent playback playback playback playback playback playback playback playback attack playback head playback robot playback singer playback system playbill playbill playbook playbook playbook play box playboy Playboy play-by-play play date playday

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。