population rate的例句大全

they presented aggregated distribution in the field with a large population and high parasitic rate.

田间呈聚集分布，种群数量大，寄生率高，控害作用显著。

results obtained showed that the survival rate and population trend index of c. suppre-salis varied with different generations.

结果表明：二化螟存活率和种群趋势指数因世代不同而异。

The world urban population is rocketing upwards at a rate of 6.5 per cent per year.

世界城市人口以每年6.5%的速度急速上升.

The average annual growth rate of automobile population in China is nearly 15 %.

中国汽车保有量年均增长率近15%.

Developmental dyslexia is a heterogeneous disease and the incidence rate in population is 10 %.

发育性阅读障碍是一组异质性疾病,其发病率高达10%.

Therefore, we should dedicate to control the rate of population growth.

所以我们现在更加应该控制人口的增长速度.

Demographers say a rate of 2.1 is needed to keep a population from declining.

人口统计学家指出,生育率必须达到2.1,才能防止人口减少.

A fertility rate of around 2.1 is considered the level a population can replace itself.

1左右的生育率被认为是人口可以自我更新的合适水平.

Objective To investigate and analyze the Morbidity Rate of Psychological and Physiological Diseases in rural population.

目的调查我国农村人口的心身疾病患病率.

The growth rate and hardiness trends are the opposite of those found in the interior population.

这种生长速度和耐寒性变化的趋势是与内地群体发现的情况相反.

The impoverished population is shrinking substantially and the impoverishment rate is decreasing sharply.

贫困人口大幅度减少,贫困发生率大幅度下降.

The natural growth rate of population is revving up in rural areas.

在农村中人口自然增长率正不断上升.

Method: We carried out an surveillance in healthy population on measles immune successful rate.

方法: 对接种儿童进行麻疹疫苗免疫成功率监测.

The natural growth rate of population continued to decline.

人口自然增长率继续下降.

In 2000 the natural growth rate of the Qinghai population was?

2000年,青海省人口的自然增长率是 多少 ?

...the annual rate of population growth.

人口年增长率

This is where cities expand into areas, at a much faster rate than urban population growth.

城市向乡村地区扩张的速度有时候甚至比城市人口增长速度更为惊人.

For instance the city changes the urban population in index year increase rate this one index.

比如城市化指标中的城市人口年增长率这一指标.

This a matter of life and death because world population is expanding at an incredible rate.

这是关系到生死存亡的问题,因为世界人口正在以惊人的速率增长.

It is by no means easy for a large country with a population of1.3 billion to maintain such a fast growth rate for28 years in a row.

对于一个拥有13亿人口的大国，要保持28年的连续快速增长绝不是一件容易的事情。