| 摘要 |
A nuclear bomb shelter of small dimensions, buildable at low-cost and of very easily installable prefabricated structural elements, comprising an outer protective wall of cupola shape, an optional second inner wall, concentric to the first wall, and bounding a central living compartment and an air space between the two walls, suitable to house various utilities and accessories, it being possible to make the prefabricated elements e.g. of plastic material.
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