“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	cardiovascular flow dynamics cardiovascular function examination cardiovascular reflex cardiovascular system cardiovascular system cardioversion cardiovirus cardiovirus carditis cardogenane cardoon cardoon cardoon cardoon cardox blaster card page card page card phone card pocket card reader card reader card-reading telephone card service card sets card-size photo

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。