“crude net migration rate”概念、定义、翻译-科学时代

单词	crude net migration rate
释义	人口学词汇手册 crude net migration rate 粗净迁移率
随便看	ballotine ballot paper ballot paper ballot papers null and void ballot problem ballotte ballot theory ball-pen ink ballplant ball planting ball planting ball porphyry ball powder ball-proof ballproof clothes ball propellant ammunition ball-race mill ball retainer ball roller mill ballroom dance ballroomology ball round ball screw balls forming machine ball-shaped compensator

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。