A given country might want to monitor dust storms, measure rice yields or track population migrations.
一个领先的国家需要检测沙尘暴，测量大米产量，和跟踪人口流动。
If the image is coupled with the patient's details and location, the system could also help track the spread of a disease through the population, he says.
他还说，如果图像上附带了患者的详细资料及所在位置，系统还能够帮助跟踪出疾病传染的人口范围。
Neither the charming old track nor the town itself, with a population of just under 40, 000, was built for such crowds.
这个居民人口在40,000之下的迷人的老赛道甚至这整个小镇，都没有规划到这么大群观众的到来。
Nonetheless, we’re still multiplying—global population is on track to reach 9.1 billion by 2050, up from 6.8 billion today.
但是，人类还在繁衍，全球人口，现在为68亿将在2050年增长到91亿人！
Less than 60 percent of Africa's population has access to drinking water and only a handful of countries are on track to reach the Millennium Development Goals.
非洲能够获得饮用水的人口所占比重不到60%，仅有少数几个国家走上了实现千年发展目标的正规。
The percentage of the world’s population using improved drinking-water sources increased from 77% to 87% between 1990 and 2008, a rate on track with meeting the global MDG drinking-water target.
1990至2008年间，世界上使用改良饮用水源的人口比例从77%上升到87%。这一比率表明，可以按计划实现全球千年发展目标的饮水具体目标。
Neither the charming old track nor the town itself, with a population of just under 40,000, was built for such crowds.
无论是这魅力四射的旧赛场，还是这座只有4万人的小镇本身，都容纳不了这种规模的人群。
The unemployment rate actually rose, to 9.1%, in May: the rate of job creation is barely keeping track with the natural increase in the working-age population.
5月份失业率实际上升到9.1%：职位创造率只与劳动年龄人口增长率持平。
You cannot track the decline and survival of the tiger population in surveys conducted every four years.
在每四年进行一次的调查中，你不能够跟踪老虎数量的下降和存活。
And this will lead them eventually to lose power or change into those who understand that a fast track to getting everything their population really needs is to promote the road to peace.
而这将带领他们最终丢失权利或者改变，在改变中他们明白一个快速的带来他们的人民真正需要的任何事物的轨迹，是促进和平的道路。
And this will lead them eventually to lose power or change into those who understand that a fast track to getting everything their population really needs is to promote the road to peace.
而这将带领他们最终丢失权利或者改变，在改变中他们明白一个快速的带来他们的人民真正需要的任何事物的轨迹，是促进和平的道路。
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