The world is faced with population explosion and energy crisis.

The population explosion led to new social habits in this country.

人口激增在这个国家导致了新的社会习俗.

Population explosion: A yellow post is covered by tens of ladybirds.

人口爆炸: 黄色后所涵盖数万瓢虫.

The potential population explosion would have tremendous repercussions on the region's physical resources such as land.

潜在的人口爆炸将对该地区的土地等自然资源造成巨大的压力.

The third is to control the total number of population and raise population quality.

三是控制人口总量,提高人口素质.

Fifth , increase the devotion of science and technology, improve population quality.

增强科教投入, 提高人口素质.

Western condition of impoverished area nature is abominable, population quality is low.

西部贫困地区自然条件恶劣, 人口素质低.

Thereinto, the research on spatial difference respectively analyzes the quantity of population and population quality.

其中, 从人口数量和素质两方面分析人口空间动态特征的差异性.

The level of population quality and economic progress have close relationship.

人口素质的水平与经济发展有密切的关系.

Historical changes have taken place in the pattern of population reproduction.

人口再生产类型实现历史性转变.

First, the population reproduction pattern has undertaken a historical change.

首先, 人口再生产类型实现了历史性转变.

A historic transition has been achieved in the population reproduction pattern.

实现了人口再生产类型的历史性转变.

I happen to have the latest population statistics with me.

我手头正好有最新的人口统计资料.

The problem, though, is that these are population studies.

问题是这些仅仅是人口调查.

As populations increase, the demand for water grows accordingly.

随着人口的增长, 用水量也相应增加.

At high populations aggressive individuals will be relatively more fit.

在高的种群中,侵犯性个体将有更强的适应性.

We study samples in order to be able to describe populations.

为了了解总体,必须研究样本.

Wild populations of trees usually carry a large " genetic load ".

树木的野生群体往往具有大量的 “ 遗传负荷. ”

History is replete with examples of populations out of control.

历史上人口失控的例子比比皆是。

Nonexposure of susceptible plant populations to their pathogens is fairly common.

感病的植物群体不暴露在它们的病原之下,这是相当普遍的.

Discontent and populism may now form a vicious circle, both causing economic failure and worsening it.

不满和民粹主义现在可能形成一个恶性循环, 两者都能引起经济失败,并使之更加恶化.