Fertility, , measured by the average number of children that would be born to a woman over herlifetime, is declining across the world but the population continues to rise as rates remain high.
生育率通过女性一生生育孩子的平均数量来衡量。全球女性的生育率正不断下降,而全球人口还在不断增加,这是因为人口出生率依旧很高。
Fertility, measured by the average number of children that would be born to a woman over her lifetime, is declining across the world but the population continues to rise as rates remain high.
生育率通过女性一生生育孩子的平均数量来衡量。全球女性的生育率正不断下降,而全球人口还在不断增加,这是因为人口出生率依旧很高。
The new registration rates of type 2 diabetes mellitus patients with pulmonary tuberculosis were calculated based on new registry number and average population of every year.
根据各年新登记数和天津市各年平均人口数,计算出2型糖尿病并发肺结核病患者的新登记率。
Resources and huge population will be enormous demand for resources, China has a large number of resources, and the average population than other developed countries have the resources.
资源,庞大的人口就会带来巨大的资源需求量,中国拥有大量的资源,而平均人口的资源却不如其他发达国家。
To undertake a systematic random sampling, one needs to know the total number of households, the average number of children under 5 years of age in a household, and the total population.
要进行一次系统随机抽样,必需知道人群中的家庭总数,平均每户家庭5岁以下儿童的个数,以及总人口。
On average, a U. S. woman has 2.1 babies in her lifetime. That's the "magic number" required for a population to replace itself.
平均来说,美国妇女在其一生有2.1个婴儿,这就是“幻数”所需的人口,以取代本身。
The population statistics issued by China 'authorities is 130 million, if this number is divided by 10,000,000, the result is that there is ONE blog host within 130 Chinese pople on average.
中国官方公布的人口数字是中国目前人口为13亿多,用这个数字除以10,000,000,得到的结果是:平均为每130个中国人中就有一个人入了博客。
With the increase of the average photon number of the coherent light field, the oscillation frequency of the atomic population inversion increases correspondingly.
随相干光场平均光子数的增加粒子数反转的振荡频率增大;
With the increase of the average photon number of the coherent light field, the oscillation frequency of the atomic population inversion increases correspondingly.
随相干光场平均光子数的增加粒子数反转的振荡频率增大;
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