“分层”概念、定义、翻译-科学时代

单词	分层
释义	会计与审计词汇手册 stratification 分层
随便看	propolis propollen Proportio proportion proportion proportion proportion proportion proportion proportion proportion proportion proportion proportion proportion proportion proportional proportional proportional-action coefficient proportional allocation proportional analogy proportional band proportional band proportional body-measuring unit proportional chamber

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。

stratification