File:RR49 structure.png
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![File:RR49 structure.png](https://upload.wikimedia.org/wikipedia/commons/thumb/8/81/RR49_structure.png/800px-RR49_structure.png?20200402215332)
Size of this preview: 800 × 545 pixels. Other resolutions: 320 × 218 pixels | 640 × 436 pixels | 1,024 × 698 pixels | 1,145 × 780 pixels.
Original file (1,145 × 780 pixels, file size: 22 KB, MIME type: image/png)