average population number 平均人口数
average population inversion 平均粒子数反转
maximum average population size 种群大小最大平均数
population average 总体平均数
population average life 人口平均寿命
POpulation average value 群体平均值
average value of population 平均客流密度
Average number of population 平均人口数
population average treatment effect 总体平均因果效应
The average population density of the world is 47 persons per square mile.
世界平均人口密度为每平方英里47人。
Low average population densities are characteristics of most underdeveloped countries.
平均人口密度低是大多数不发达国家的特点。
Despite its more relaxed regulations, the county has a lower-than-average population growth rate.
尽管控制更为宽松,但是该县的人口增长率却低于平均水平。
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。
This is very important,which is why I am doing it: "If we want to know how fast a human being can run, then it is no use to average out the speed of a "good sample" of the population; it is far better to collect Olympic gold medal winners and see how well they can do.
这话非常重要,是我作这个研究的原因:,“如果想知道人类最快能跑多快,那从好的样本中测出平均数是“,没用的;,而应该收集田径类奥运冠军的信息,看他们能跑多快。
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