“硬土层”概念、定义、翻译-科学时代

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。

单词	硬土层
释义	地理学词汇手册硬土层 hardpan
随便看	administrative protection administrative protection administrative protection administrative proverb administrative range administrative rationality administrative receiver administrative reconsideration administrative reform administrative region administrative region of a city administrative regulation administrative regulations administrative regulations of education administrative regulations of environment administrative relationship administrative reliability administrative remedy administrative responsibility administrative responsibility system administrative revenue administrative review administrative rule administrative rules and regulations administrative sanction