“closed frame”概念、定义、翻译-科学时代

单词	closed frame
释义	矿业工程技术词汇手册 closed frame 完全棚子；密封棚子
随便看	creative toy creative treason creative work creative writing creative writing creativity creativity creativity creativity creativity creativity test creativity training creator Creator Creator，the creature creature creche credence credence credendum credential credential credential credential

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。