A vareity of colored markers is used to give you, at first glance, a general idea of population density in each zip code.

不同颜色的标志表示每个邮政编码区域的人口密度。

youdao

That's because they can now use those distinctive black and white stripes to count a population, bar code style.

因为他们可以使用斑马身上独特的黑白条纹来统计斑马的数目，就像商品条形码一样。

youdao

The advanced GA USES two virtual population methodologies to process the population of standard binary and real code GA for RPO problem.

该算法采用两种虚拟种群的方法对常规遗传算法及浮点数遗传算法的种群实行改进。

youdao

Demographic information such as median income and population density are from the U.S. Census Bureau's most recent ZIP code survey.

FORBES: Magazine Article