“underground layer”概念、定义、翻译-科学时代

单词	underground layer
释义	地理学词汇手册 underground layer 地下层
随便看	architrave archival archival access archival administrative department archival arrangement archival attribute archival backup archival catalogue archival code archival copy archival copy archival database archival description archival descriptive information centre archival evidence archival exhibition archival informatics archival information classification archival microform archival processing archival publication archival record archival repository archival research archival science

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。