It's a set of concentric geodesic structures with linkages between each one.

这是一个同心和密网格结构的组合，每个部分都彼此相连。

These precious overalls are never taken off, and nobody knows how old they are, though one may guess by their thickness and concentric structure.

这些珍贵的工装裤从不脱下， 也没有人知道它们有多大， 尽管人们可以根据它们的厚度和同心结构来猜测。