Although acts took place in the outer rings, which were colored blue, attention was focused on the largest center ring, which was white. (religion-online.org)
The middle layer is the tachometer mechanical center ring. (greencarcongress.com)
The three centers each ring up sales that top $ 300 per sq. ft., and those sales figures have been a strong incentive to explore innovative growth opportunities. (nreionline.com)