“closed period”概念、定义、翻译-科学时代

单词	closed period
释义	图书馆、情报与文献学词汇手册 closed period 闭馆时间
随便看	umbellet umbellet umbellifer umbelliferae Umbelliferae umbelliferose umbelliferous umbelliferous umbellula umbellulate umbellule umbellule umbellule umbellule umbilic umbilical umbilical umbilical ancestor umbilical ancestor umbilical cable umbilical connector umbilical connector umbilical cord umbilical cord umbilical cord

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。