sex ratio的例句大全

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.

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?

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.

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.

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.

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.

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.

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.

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 ).

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.

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.

The ratio of Dukes stages and sex in two groups was not different ( p & gt; 0.05 )

两组男女构成和Dukes分期无统计学差异 ( P & gt; 0.05 ).

The family planning policy, which was introduced in the 1980s to encourage each couple to have just one child, has pushed the sex ratio at birth up to some degree.

计划生育政策在20世纪80年代出台，鼓励一对夫妻只生一个孩子，这一政策使得出生人口性别比上升到了一定的高度。

In 3009 clinic STD patients, there were 4 people whose HIV antibody was electropositive. The STD infection ratio was 84.7%, 37.6% of them had more than one sex partner.

3009例性病门诊就诊者中检出4例HIV抗体阳性，性病感染率为84.7%，37.6%的人有多性伴。

Investigation of Sex Ratio of Gray Squirrel ( Sciurus vulgaris) in the Region of Sun Island with Molecular Scatology Method

应用分子粪便学方法调查太阳岛地区灰松鼠性别比例

Parity-Intensification Effect: Birth Planning Policy and Sex Ratio at Birth in China

胎次-激化双重效应：中国生育政策与出生性别比关系的理论构建与实证研究

In the square dance exercise, a balanced sex ratio is not enough. 2.

在广场舞的练习中，性别比例不够均衡。

Grey mullet cultured in the control group, hormones without treatment, showed a sex ratio ( female and male) of 2.5% and 97.5% in the process of all-female culture.

本文报道了在全雌鲻鱼培育过程中，未经激素处理的对照组鲻鱼雌雄性比例为2.5%和97.5%。