“composition of population”的概念、定义、翻译、参考文献-科学参考

单词	composition of population
释义	composition of population Encyclopedia 法学人口结构释 composition of population人口结构依据人口所具有的自然的、社会的、经济的和生理的特征，将人口划分为各个组成部分所占的比重，一般用百分比表示。又称人口构成。
随便看	infrared spectrometer infrared spectrometry infrared spectrometry for pharmaceutical analysis infrared spectrophotometer infrared spectrophotometry infrared spectroscopic analysis of minerals Infrared Spectroscopy infrared spectroscopy infrared spectroscopy remote analysis infrared spectrum infrared stable point infrared star infrared staring detector infrared staring imaging guidance infrared stealth composites infrared stellar radiation infrared stimulated luminescence infrared-submillimeter background infrared sun infrared surface thermometer infrared system infrared system simulation infrared system test method infrared target simulator calibration infrared technique

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。