“人口结构”概念、定义、翻译-科学时代

单词	人口结构
释义	社会学词汇手册人口结构 population structure
随便看	close-range photogrammetry close-range photogrammetry close-range photogrammetry close-range photography close ranks close reading close registry close sand mill close satellite close season close set timber close shield close shot close shot close shot close shot close-spaced vapour transport close spacing closest approach close station close stick close-stool close structure close substitute close support

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。