“推拉理论”的概念、定义、翻译、参考文献-科学参考

单词	推拉理论
释义	推拉理论 Encyclopedia 法学人口理论释 "push-pull" theory推拉理论一种解释推力和拉力在人口迁移中作用的人口迁移理论。
随便看	drinking water pollution drinking water projects for human and domestic animals drinking water purification drinking water source drinking water source protection zone drinkometer drip bloodstain drip detector drip irrigation drip irrigation under plastic mulch drip line drip-line drip loss dripping method dripping pills drip-round condenser Driss Chraïbi Dritter Fundamental Katalog Drity War，Argentina drivability calibration drive drive asymmetry drive at the center of gravity drive-by-download drive clock

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。