“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。
随便看	fundamental physical constants fundamental plane fundamental point fundamental polygon fundamental polyhedron fundamental polytope fundamental principle fundamental principle of mineral exploration fundamental principles for international protection of intellectual property right fundamental principles of international law fundamental principles of securities law fundamental problem fundamental problems of philosophy fundamental process in radiation chemistry fundamental property fundamental quantity fundamental reference frame fundamental reference system fundamental reflection fundamental region fundamental relation fundamental relaxation fundamental representation fundamental research fundamental resonance

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