study on the population problem 人口问题研究
study on the population dynamics 种群消长动态
analysis on the population dynamics 发生特点分析
On the Transient Population 试论流动人口犯罪
The population on Earth 地球上的人口
We're obligated to keep a pulse on the population for at least five years after the foxes are delisted.
在狐狸被除名后的至少五年时间里,我们有义务继续监测狐狸种群。
The apportionment of seats in the House of Representatives is based on the population of each state.
众议院的席位是根据各州的人口分配的。
Kohler argues that pinon was disappearing from the locale of settlements and that this put an additional nutritional strain on the population, which used nuts from the tree as well as its wood.
"科勒认为,矮松正在从居住地消失,这让当地居民面临更严重的营养问题,因为他们食用矮松的坚果,并以矮松作为木料。
But first we report on American efforts to get Hispanics to take part in the population count called the census.
VOA: special.2010.05.07
When you get--this is Rituparna, counting the leaves on a tree-- you can estimate, from a sample, the population expected values.
如果你...像数叶子的睿都巴若那一样,只有部分样本的话,你可以来估计总体均值
We could have gone on and studied the average at-risk population for decades and centuries.
我们本可以继续研究几百年来的,平均受危人群。
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