“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	analytically homeomorphic manifold analytically hypoelliptic operator analytically independent elements analytically irreducible ring analytically normal ring analytically reducible variety analytically representable function analytically thin set analytically uniform space analytically unramified ring analytical map analytical Marxism analytical mechanics analytical mechanics of the elastic rod analytical methods for scale and corrosion products analytical methods for steam and water analytical methods of Polysaccharide drug analytical performance parameter analytical philosophy of history analytical photogrammetry analytical plotter analytical procedures analytical quality control analytical reagent analytical reagent (A.R.)

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。