- 22418 540x960 system, scheme, blue
- 21639 540x960 system, blue, device
- 18287 540x960 system, shutdown, sign
- 15897 540x960 system, form, shape
- 15281 540x960 system, device, glass
- 12900 540x960 system, form, shape
- 12410 540x960 system, mechanism, device
- 10572 540x960 system, face, pink
- 37275 540x960 mechanism, system, gears
- 31994 540x960 grid, system, green
- 23831 540x960 ubuntu, system, multi-colored
- 20184 540x960 fail, system, code
- 15839 540x960 device, system, ball
- 13711 540x960 surface, system, diagram
- 13627 540x960 lock, system, words
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