“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	Petr Nikitich Tkachev Petr Nikolaevich Fedoseev Petr Nikolaevich Krasnov Petro-Canada petrochemical complex fire petrochemical industry petrochemical industry catalyst petrochemical plant fire petrochemicals petrochemical safety Petrochemical Technology petrochemical wastewater petrochemistry petrocole petrofabric petrofabrics petrogenetic grid Petroglyph in Chulut River Valley Petroglyphs within the Archaeological Landscape of Tamgaly petrographic geomorphology petrographic texture and structure petroleum petroleum accumulation petroleum additive petroleum agriculture

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。