“user class of service”概念、定义、翻译-科学时代

单词	user class of service
释义	图书馆、情报与文献学词汇手册 user class of service 用户服务级别
随便看	masquerade attack masquerading masque theatre mass mass mass mass Mass mass mass mass mass mass mass Mass mass mass mass mass ablative rate mass absorption coefficient mass absorption coefficient Massachusetts Circular Letter Massacre of Amritsar Massacre of Fort Mims Massacre of Karbala

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。