| 摘要 |
A building block, which is adapted to be assembled with other such blocks to form a structural unit, includes a tetrahedrally shaped block body. The block body has an upper edge, two upper triangular faces sloping downwardly and mutally diverging from the upper edge, a lower edge, and two lower triangular faces sloping downwardly and mutually converging to the lower edge. The lower edge is disposed orthogonally and spaced below the upper edge. The building block further includes a hooking lip formed on and projecting from each of its upper and lower faces. The hooking lip of one block is adapted to interlockingly engage a hooking lip of another block. When the building blocks are so engaged, they may be assembled in an overlapping, geometric, self-supporting arrangement suitable for load bearing applications.
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