Aftera population peak of over two million residents in 1950 the city'spopulation declined while the suburban neighboring counties grew.
在一个人口高峰期超过200万居民在1950年，该市的人口下降，而周边的郊区县的增长。
"Our planet is approaching a perfect storm of population growth, climate change and peak oil," he said.
“我们的星球正走进人口增长、气候变化和石油峰值的完美风暴，”他说。
This surge has underpinned rapid economic growth, but is now ending. The share of the working-age population in East Asia will peak this decade and fall to 57% by 2050.
这促进了经济的增长，但现在这种好处要结束了：十年内该人群在东亚会到达顶峰，而到2050年会下降到57%。
In a given area, the worst will usually be over in four to six weeks as the virus rushes through a susceptible population, cases peak and infections decline with equal speed.
在既定区域，最坏的情况是，当病毒急匆匆地冲向易感人群后的四到六周内，病例数到达顶峰，接着匀速下降。
The peak of population growth was in the late 1960s, when the total was rising by almost 2% a year.
人口增长速度的顶峰是在20世纪60年代尾，当时总人口一年增长将近2%。
World population growth is now declining after its annual peak of 2.2 percent in the early 1960s.
世界人口的增长率同60年代早期的顶峰相比(年度增长2.2%)已经下降了。
China's population would fall by a staggering 450m from its peak in 2025, to 941m.
中国的人口数量将在2025年达到峰值，然后将令人震惊地减少4.5亿人口，降到9.41亿人。
World population is forecast to peak at 9.2bn by 2050.
预计世界人口到2050年将达到92亿的峰值。
At its peak, fifty thousand people had lived there, but now only a fraction of the population was left.
鼎盛时期，有五万人居住在这里，但是现在的人口连个零头都不到。
Yet the growth in the world's population is actually slowing. The peak was in the late 1960s, when it was rising by almost 2% a year.
然而世界人口增长实际已经放缓，增长率在上世纪60年代处在峰值点，当时的年增长率将近2%。
Overall, curbing population growth could reduce greenhouse gas emissions; reducing peak population to roughly 8 billion, for example, could save 29 percent of expected greenhouse gas emissions.
总的来说，遏制人口增长能减少温室气体排放。例如，将峰值人口减至80亿，将能减少29%的预期排放量。
Russia's population keeps falling and is now 142 million, down from its peak of 148 million in the 1990s.
俄罗斯人口持续下降，如今只有1.43亿，低于上世纪九十年代的1.48亿峰值。
Reducing peak population to roughly 8 billion, for example, could save 29 percent of expected greenhouse gas emissions.
例如，将峰值人口减至80亿，将能减少29%的预期排放量。
Its population had dwindled to 3,000 from a peak of 15,000 in the 1970s.
人口数量从70年代的巅峰时期15000人下降到3000人。
Its population had dwindled to 3, 000 from a peak of 15, 000 in the 1970s.
人口数量从70年代的巅峰时期15000人下降到3000人。
Tourist sites in China can often be busier than a train at peak time thanks to the country's huge population.
因为中国庞大的人口，中国的旅游景点经常会比高峰期的列车还要热闹。
Known in Japan as tancho (red peak), the red-crowned is the second rarest crane species, after the whooping crane, with a world population of fewer than 2, 500 birds.
丹顶鹤是世上第二罕见的鹤，仅次于美洲鹤，目前全球幸存数量低于2500只。
Population fluctuations of both species were erratic in respect to annual occurrence, the time of the peak density of fluctuations within years, and the hight of peak the density a given year.
根据两种田鼠种群波动周期性、波动峰值出现的时间以及特定年份峰值的高度等特征，证明两物种波动均具有不稳定性。
The population diffusing periods are before and after the peak of the hatching period.
孵化高峰期前后为种群的扩散时期。
The yearly population density fluctuates in a single peak.
全年种群密度变化呈单峰型。
The results showed LAD of spring wheat population changed as a curve with single peak.
结果表明，春小麦高产群体光合势在整个生育期呈单峰曲线变化，峰值在孕穗至开花期。
Between 1987 and 2007 the number of drivers during peak hours doubled, as the area's population rose from 2.6m to 5m.
从1987年到2007年，随着该区人口从260万增至500万，交通高峰期的司机数量也增加了一倍。
Analytical expression for the peak and total population of each continuum are presented, and the peak-switching effect is discussed.
推导了各连续态的峰值与总粒子数的解析表达式并详细讨论了峰开关效应。
Tourist sites in China can often be busier than a commuter train at peak time thanks to the country "s huge population."
由于人口众多，中国旅游景区通常比高峰期的通勤列车还要繁忙。
Known in Japan as tancho (red peak), the red-crowned is the second rarest crane species, after the whooping crane, with a world population of fewer than 2,500 birds.
丹顶鹤是世上第二罕见的鹤，仅次于美洲鹤，目前全球幸存数量低于2500只。
Japan's smoking population now stands at less than 25%, though it had long been considered a smokers' paradise with smoking rates hitting a peak of 49.4% in 1966.
现在日本的吸烟率不到25%，而日本长期以来被认为是烟民的天堂，在1966年，吸烟率达到了49.4%的高点。
Japan's smoking population now stands at less than 25%, though it had long been considered a smokers' paradise with smoking rates hitting a peak of 49.4% in 1966.
现在日本的吸烟率不到25%，而日本长期以来被认为是烟民的天堂，在1966年，吸烟率达到了49.4%的高点。
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