| 摘要 |
A construction kit such as for the depiction of atoms and their electron arrangements in elements and compounds. This kit comprises a plurality of ring components each having plural connection points for connection to other ring components. The connection points typically comprise male connectors or female connectors with each ring component including one or more male connectors, one or more female connectors, or both male and female connectors, so that multiple ring components can be connected in different configurations to form three-dimensional objects in the form of hemispheres or spheres.
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