black dial with concentric pattern 黑色表盘
concentric drainage pattern 同心型水系
concentric ring pattern 密集环形图案
Its regular grid pattern is clearly visible at image upper left; concentric rings of major roadways around the city have been added as the metropolitan area has expanded.
而其独特的井字状城市格局也清晰地呈现在图片的左上角，围绕着城市的环形高速路也正在向周边快速辐射开去。
The other pattern that looks like some sort of targeting grid is set up with concentric rings of what appear to be structures with straight spokes radiating out from the center.
其他的看起来像是一组同心圆由中心向四周辐射，圆心有几架飞机。
Smaller concentric circles on the end give a nice ring pattern and some areas of darker shading at the bottom of the log give it some depth.
最终为小同心圆给一个不错的铃声模式，在日志底部和黑暗的阴影部分地区给予一定的深度。
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