或许以相似的方式制作出圆形的迷宫，可以先画一些同心圆，在用一些直线穿过这些同心圆。

Perhaps you could make a circular maze in a similar way by first drawing a set of concentric circles with lines radiating through them.

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指出济宁城市空间是按照外延式和内涵式扩展两种方式扩展的，城市空间形态采取了同心圆式扩张、跳跃式生长两种形式的演变。

In accordance with the urban space is that jining denotative and connotative extended two ways to expand, urban space form adopted concentric type expansion, leaping growth two forms of evolution.

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