“sex ratio at birth”的概念、定义、翻译、参考文献-科学参考

单词	sex ratio at birth
释义	sex ratio at birth 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	integrable in the sense of Perron integrable in the sense of Riemann integrable module integrable multifunction integrable random variable integrable representation integrable series integrable singularity integrable solid integrable statistic integrable structure integrable surface integrable system integrable system of differential equations integrable variation integrably homotopic foliation INTEGRAL integral integral a-lattice integral algebra integral algebraic quantity integral algebroidal function integral analysis integral artificial boundary condition integral atomic time

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