“population composition”概念、定义、翻译-科学时代

单词	population composition
释义	社会学词汇手册 population composition 人口构成
随便看	channel length channeller channelling channelling channelling machine channelling machine channel loading machine channel loss channel management channel management channel management channel-management decision channel marketing channel marking channel mix channel model channel monitor channel monitor channel monopolization channel morphology channel multiplier channel multiplier channel net channel noise channel noise

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。