“upgrade”概念、定义、翻译-科学时代

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。

单词	upgrade
释义	图书馆、情报与文献学词汇手册 upgrade 升级
随便看	directory access protocol--directory access protocol (DAP) directory advertising directory assistance directory-based multiprocessor directory catalogue directory client agent (DCA) directory database directory-enabled network directory-enabled network (DEN) directory-enabled network--directory-enabled network (DEN) directory file directory harvest attack directory harvest attack (DHA) directory harvest attack--directory harvest attack (DHA) directory index directory information bank（DIB） directory information base (DIB) directory protocol directory provision directory replication directory retrieval directory search engine directory server directory server agent (DSA) directory service