Cnn has a table of p / r ratios for 54 american cities from the summer of 2007 , which includes long-term averages .

美国有线电视新闻网（cnn）有一个美国2007年夏天54个城市p/r比值表，表中还包含长期平均值。

Even so , biologists still assign the same age-length ratios to lobsters from all locations , says biologist carl wilson of the maine department of marine resources in west boothbay harbor .

即使如此，生物学家们仍用同一个标准来分类世界各地的龙虾长度-年龄比值，西布斯贝港，缅因湾海洋资源系的生物学家卡尔-威尔逊如是说。

If you want more info , check out this july article from time , or this april article at the new york times ( which contains p / r ratios for major u.s. cities from the end of 2009 ) .

如果你想要了解更详细信息，请看看这个月的文章，从《时代》，或《纽约时报》四月份的文章（它包含2009年底美国主要城市的p/r的比值为）。