查询词典 sex ratio

The sex ratio (female=100) is...

性别比（以女性为100，男性对女性的比例）为

Objective:To probe into the sex ratio of natural flea populations.

目的：探讨蚤类自然种群的性比。

Results Sex ratio of incidence of this group of patients is 1.57 to 1.

分析总结北京协和医院1983～1998年2月收治的布加综合征90例。

A major reason is that sex ratio imbalance.

一个主要的原因是，男女比例失调。3：5或2：5。

Second, it is necessary to solve the high sex ratio of births.

二要解决好出生人口性别比偏高问题。

Meanwhile, it is estimated that sex ratio of age group 0-4 is about 114 in the fifth census .

同时得出"五普"0-4岁年龄组的性别比为114左右。

Nowadays,the higher sex ratio at birth in our country is an obvious fact.

目前，我国出生性别比偏高已成为不争的事实。

So I often half jokingly said to her:"you of the opposite sex ratio you of edge to edge."

因此我常常半开玩笑地跟她说："你的异性缘比你的同性缘还要好。"

Structure of the population, including the drop in sex ratio

年，人口结构的转变，包括性别比率下跌

That sex ratio will be favored which maximizes the number of descendants an individual wi...

听力是雅思考试面临的第一道坎，同时也是检验考生英语运用水平的一个关口。。。。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。