“population vacuum”概念、定义、翻译-科学时代

单词	population vacuum
释义	人口学词汇手册 population vacuum 无人带，人口真空带
随便看	PE (polyethylene) PE (power exchange) PEP (pension equity plan) PEP--PEP (pension equity plan) PEP--PEP (personal equity plan) pepper pepper pepper pepper pepper pepperbush family pepper chicken peppercorn pepper corn peppergrass pepperidge peppermint peppermint peppermint peppermint peppermint essence peppermint humbug peppermint liqueur peppermint oil peppermint oil

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。