“人口变动”的概念、定义、翻译、参考文献-科学参考

单词	人口变动
释义	人口变动 Encyclopedia 法学人口变动释 population transition人口变动人口状况受自然、经济、社会及人口自身等各方面因素的影响，在一定时期和区域内在数量和结构上所发生的变化。
随便看	steady discharge steady distribution steady electric field steady error steady error coefficient steady field steady flight steady flow steady flow energy equation steady-flow gas expansion refrigeration cycle steady flow water distribution technology steady high magnetic field steady linear flight performance of aircraft steady load steady motion steady noise steady non-uniform flow in open channel steady potential steady problem steady resistance steady sound filed steady spiral pattern steady state steady state analysis steady state approximation

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。