“hardpan”概念、定义、翻译-科学时代

单词	hardpan
释义	环境科学与工程词汇手册 hardpan 硬土层，硬质壳
随便看	Object Management Group Object Management Group--Object Management Group (OMG) Object Management Group (OMG) Object Management Group (OMG) object management group（OMG） object management system object manager object manager--object manager (OM) object manager (OM) object micrometer object modelling object module object monitor object movement perception object of action object of consciousness object of copyright object of crime object of indexing object of information object of insurance object of integrated standardization object of labour object of psychology object of quarantine

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。