“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	Military Strategic Tactical And Relay satellite military stress military stress adaptation military stress injury military stress load military stress medicine military stressor military stress response militarystress ulcer military supervisor military supply chain military swift trust military system Military system change Military System in Ancient Rome military system in Dahomey military systems engineering military terrain analysis system military thematic map military topographic investigation military topographic map military topology military training commissioner military training for college students military training hygiene

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