a population boom的意思|示意

The elderly boom, a surge in the proportion of the population older than 65 years old (included), common in both developed and developing countries, is believed to weaken the society as a whole.

老年人暴涨，就是六十五岁及其以上人口占据总人口比例增加，在发达和发展中国家都普遍，被认为是有害社会的现象。

But officials have resisted any major policy changes out of fears that a major population boom might follow.

但官方不想作出任何重大的政策变动，因为担心接着会出现大的人口出生潮。

The general practitioners are needed to help coordinate care for members of the baby-boom generation, now a quarter of the U. S. population, who will be aged 56 to 74 in 2020.

全科医生需要对帮助协调照顾婴儿出生高峰年代，到2020年年龄在56到74之间，目前占人口四分之一的美国人。

In the city of rapid development, population boom and the growing environmental problems of today, the global urban landscape and garden construction has not only a higher standard of luxury economy.

在城化迅猛发展、人口暴涨和各种环境问题日益严重的今天，在全球范围内的城市景观和园林的建设已不仅仅是经济水平提高之后的奢侈。

It is posed that the population boom is a disaster, which is closely related to the all natural disasters and human disaster and is an inducing factor.

本文从灾害学的角度提出了人口过多或增长过快也是一种灾害，这种灾害与所有的自然灾害和人文灾害密切相关，是许多灾害的诱发因素。

During the 19th century, the construction of an extensive canal system and the arrival the railways triggered a boom in population.

19世纪，大范围的运河系统建设和铁路的发明使得人口迅速增长。