“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	artificial cochlea artificial comet artificial compression artificial concept artificial constraint artificial constraint technique artificial construction techniques artificial cranium artificial crater Artificial Daylight 6500K artificial diamond artificial digestive juice artificial disturbance artificial downwelling artificial ear artificial earthquake seismometer artificial earth satellite artificial electronic prosthesis artificial element artificial endosperm artificial enhancing rainfall artificial environment artificial enzyme artificial enzymes based on polymers artificial esophagus

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。