| 摘要 |
An artificial block is described for structures such as ocean and river structures in particular, and specifically for forming an outer shell providing protection against the effects of swell and current. The geometric shape of the block consists of two straight prisms (5, 6) with isoceles triangle bases, the axes of symmetry of which coincide. The prism bases (7, 8) are mutually perpendicular, and the apex edges (1, 3) and base planes (2, 4) corresponding to the apexes and bases of the isoceles triangles are inverted, the two prisms (5, 6) engaging with each other and always forming a single solid.
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