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| First Page | Document Content | |
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 Date: 2014-08-31 15:13:13Convex geometry Euclidean geometry English orthography Pinyin table Geometry Deltahedra Octahedron |
| First Page | Document Content | |
|---|---|---|
Date: 2014-08-31 15:13:13Convex geometry Euclidean geometry English orthography Pinyin table Geometry Deltahedra Octahedron |
