男女人口比例;
These problems include the high sex ratio and the growing population aging.
例如出生人口性别比偏高、人口老龄化等.
汉英非文学 - 白皮书The study on the sex preference address the origin of the sex ratio disequilibrium.
性别偏好的研究,源于出生人口性别比的异常.
——期刊摘选In rural areas that will exacerbate the sex ratio very markedly.
这加重了农村地区男女比例失调的问题.
互联网We found no significant difference in the sex ratio between EWS and CS ( P > 0.05 )
实验增温灌丛样地与对照间性比的差异不显著 ( P>0.05 ).
互联网For the purpose of studying the relations of egg shape index to hatchability and sex ratio.
用单因子试验设计,探索了罗曼父母代种蛋蛋形指数与孵化率、性比例的关系.
互联网And they find that households with sons save more in high male - to - female sex ratio regions.
他们还发现,在男女性别比失衡的地区,有儿子家庭的储蓄率会更高些.
互联网From 26℃ to 36℃, the sex ratio of female to male changed markedly as the temperature increased.
雄性比例,在26℃~36℃范围内随着温度上升而增大,至36℃时, 两种群成虫均为雄性.
互联网The idea of diet influencing sex ratio is already part of traditional wisdom.
饮食影响孩子性别的观点其实早已有之.
互联网The difference of sex ratio between nature pregnancy and this study is unremarkable.
三组之间婴儿性别比例不存在差异.
互联网The newborn sex ratio for local people is 100:107 which is within the normal international range.
上海当地的新生儿男女比例为100:107,这个还是处在国际平均线之内的.
互联网Why the Approaches Dealing with the Sex Ratio Imbalance are Largely Ineffective?
治理出生人口性别比失衡问题为何成效甚微?
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