Design Feature:
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(1) Armillary spheres, planetaria, astronomic orbits, atomic models, molecular models
(2) More than three circles juxtaposed
(3) Squares
(4)
(5) Quadrilaterals containing one or more circles, ellipses or polygons (specify the content)
(6) Quadrilaterals containing one or more rounded corners
(7) Quadrilaterals containing one or more lines or bands (specify the content)
(8) Vertical lines or bands
(9) Horizontal lines or bands
(10) Oblique lines or bands
(11) More than three lines
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