“出生性别比”的概念、定义、翻译、参考文献-科学参考

单词	出生性别比
释义	出生性别比 Encyclopedia 法学生育率释 sex ratio at birth出生性别比在特定的时间和空间范围内出生时的活产男婴数与活产女婴数之比。又称出生人口性别比、第一性别比。
随便看	universal topological space universal transverse mercator projection universal Turing machine universal two-child policy universal unfolding universal uniformity universal validity universal variety universal woodworking machine universal λ-ring universe universe abundance universe age universe, cosmos universe evolution universe mean universe of a structure universe of discourse universe's age universe's age, cosmic age Universidad de El Salvador university and college campuses University Benchmark Association university charter University College London: Department of Information Studies (UK)

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