“人口结构”的概念、定义、翻译、参考文献-科学参考

单词	人口结构
释义	人口结构 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。 Biology population structure人口结构
随便看	aviation man-machine system aviation medical rescue team aviation medicine information aviation meteorological disaster aviation meteorological information aviation meteorological support aviation meteorology aviation metrology aviation navigation system calibration technique aviation nutrition aviation oils contamination measurement standard aviation oils flowrate measurement standard aviation physiology aviation piston engine aviation plant protection machinery aviation product basic reliability aviation product built-in test aviation product combined environmental test aviation product corrective maintenance aviation product customer service aviation product(equipment) development configuration basic lines aviation product(equipment) development standardization aviation product(equipment) development standard system aviation product(equipment) development technical standard view(s) aviation product(equipment) development-unique specification(s)

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。