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1·The ethnic intermarriage probability of a national and another nation is equal to the population proportion of another nation;

某一民族与另一个民族的族际通婚概率等于另一个民族的人口比重；

2·The so-called aging of populations is refers to the old population to grow and to assume the trend of escalation day by day in the total population proportion the phenomenon.

所谓人口老龄化是指老年人口在总人口中的比例日益增长并呈上升趋势的现象。

3·The laborers of the county-level economy in the minority regions can be divided into farmers, herdsmen and the other laborers according to their population proportion and occupation.

依据人口所占比重和从事的职业划分，少数民族地区县域劳动者可分为少数民族农牧民和县域其他劳动者。

4·A substantial proportion of the population speak a French-based patois.

此人群中很多人说一种以法语为基础的混合语。《柯林斯英汉双解大词典》

5·In America, a one-percentage point increase in the proportion of immigrants in the population made the native-born 0.05% better off.

在美国，移民在人口中所占比例每增加一个百分点，本土出生的人口生活水平就会提高0.05%。

6·The proportion of the population who are over retirement age has grown tremendously in the past few years.

超过退休年龄的人口的比例在过去几年中已急剧增长。《柯林斯英汉双解大词典》

7·Although a small proportion of the total population, this perhaps had a massive local impact when a large proportion of the young men were removed from an area.

虽然在总人口中所占比例很小，但当很大比例的青年男子被迫迁出某一地区时，可能对当地产生巨大的影响。

8·As mass production techniques were refined in the 19th century, the price of pianos dropped to the point that a larger proportion of the population could afford to own them.

随着19世纪大规模生产技术的改进，钢琴的价格下降到更多人都买得起的程度。

9·WHO reports annually on the proportion of the population using solid fuels for cooking as a key indicator for assessing progress in health and development.

世界卫生组织每年针对使用固体燃料进行烹饪的人口比例作出报告，以此作为评估卫生与发展方面取得进展的一项主要指标。

10·For example, economists can plot a relationship between the proportion of the population aged between 35 and 59 (when people save most) and the level of real interest rates.

比方说，经济学家可以画出35岁至59岁人群(存最多钱的一部分人)的比例与实际利率水平的关系曲线。