“interval between first marriage and fist birth”的概念、定义、翻译、参考文献-科学参考

单词	interval between first marriage and fist birth
释义	interval between first marriage and fist birth Encyclopedia 法学生育率释 interval between first marriage and fist birth初婚初育间隔妇女第一次结婚和结婚后第一次生育的时间间隔。又称婚育间隔。
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