查询词典 fertility rate

The fertility rate is a hypothetical, almost conjectural number.

生育率是一种假设，基本上是推测的数字，和出生率不同。

America's fertility rate is 60% higher than Japan's and 40% higher than the European average.

美国的生育率比日本高出60%，比欧洲的平均水平高出40%。

The results showed that the egg fertility rate and hatchability rate were increased compared with control group.

结果表明添加锌的 3个试验组和对照组相比，种蛋受精率和孵化率均显著提高。

Nugent says statistics on the fertility rate were also revealing.

Nugent说人口出生率的统计数据也揭示了这一点。

Nugent says statistics on the fertility rate were also revealing . Most developing countries have what we call a youth bulge , which means that they still have a very large number of young people.

Nugent认为关于的出生率的数据仍然是有启迪性的，她说：大多数发展中国家存在一个我们称之为'青年膨胀'的现象，即青少年人口过多。

Nugent says statistics on the fertility rate were also revealing."Most developing country have which we call a youth bulge, which means they still have very large numbers of young people, that means they are going to continue to have large population growth as those young people have children."

Nugent 说，人口增长率的统计数据也是具有预示作用的，"大多数发展中国家都有我们所说的青年膨胀，这就意味着当这些青年人有了后代之候，他们仍然会有巨大的人口增长。"

The result indicated that ripe fish can strong physique by breeding in reinforcement, using oxytocic to make ripe fish grow synchronously, increase fertility rate of ripe fish, using slack water lo charge can increase the hatchabilily over95%.

结果表明，亲鱼经过强化培育以后，可明显增强体质，利用混合药物催产，能使亲鱼生长同步，鱼卵受精率提高，采用静水充气方法，可使孵化率高达95％上。

Predictable result is that Chinas total population will reach its peak in 2024 at 14.3688 million people (total fertility rate from 1.8), the forecast results show that this model has good prediction accuracy and forward-looking, on Chinas development of appropriate population policy in order to adapt to the comprehensive construction of harmonious society demands of the population have a positive reference value.

预测的结果是我国总人口将在2024年达到峰值14.3688亿人（总和生育率取1.8），预测结果表明，此模型具有良好的预测精度和前瞻性，对我国制定相应的人口政策以适应全面建设和谐社会对人口的要求有积极的参考价值。

This text constructs linear regression model of Chinese total fertility rate through regression analysis on 109 countries' 20 statistical data,such as per GDP,women literate rate,women mean lifetime.

针对3O多年来中国生育政策的人口效果、社会经济效果的评估，在2O世纪9O年代初便有学者予以关注(吴忠观、肖立见，1994)，到2O世纪末21世纪初有更多的学者对生育政策的效果进行了研究(李建民、王金营，2000；陈胜利，2001；杨魁孚等，2000)，政府有关部门也对此十分重视。

Besides, this paper is based on the data of the population censes in 2000 with the total fertility rate as the controlling parameter, using PEOPLE and EXCELL to make an analysis of the trend of the oldest- old in China. The result of this analysis demonstrates that the oldest-old is increasing at the fastest rate in China, which has become a block in the development of China.

本文还以中国2000年人口普查数据为基础，以总和生育率为调控参数，在一定的死亡水平之下，采用People和Excell对中国高龄老年人口进行趋势分析，预测结果表明，中国高龄老年人口仍然是增长最快的人口群体，其问题的严重性已不言而喻。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。