“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	compound interest method of depreciation compound interval compound journal entry compound judgement compound key compound lard compound lard compound layer compound leaf compound leaf compound leaf compound leaf compound lens compound letter compound lining compound loading compound matrix compound meter compound microscope compound moiety compound name compound negative multinomial distribution compound noun compound nuclear cross section compound nuclear elastic scattering

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。