由八个三角形的部分相互铰合而成，放置水平后行人即可通行。
It consists of eight triangular sections hinged at the walkway level.
地质界面模型是由煤层的顶底板插值曲面经煤层边界和断层曲面裁剪而成的，地表面模型是对原始地表数据和矿坑数据进行三角剖分得到的三角形网格。
The interpolation face of coal seams is trimmed by boundary and the closed polygons of up and down faulted blocks to form the deposit interface model. The earths surface model is founded.
内部墙壁上的图案看起来是由三角形拼接而成的。
The graphic on the walls of the parlour's interior appears to be a mosaic of triangles.
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