- 18084 480x800 system, shutdown, sign
- 21347 480x800 system, blue, device
- 22205 480x800 system, scheme, blue
- 15107 480x800 system, device, glass
- 12691 480x800 system, form, shape
- 10272 480x800 system, face, pink
- 12177 480x800 system, mechanism, device
- 15711 480x800 system, form, shape
- 19157 480x800 fail, system, code
- 12468 480x800 lock, system, words
- 36450 480x800 mechanism, system, gears
- 23278 480x800 ubuntu, system, multi-colored
- 31765 480x800 grid, system, green
- 15623 480x800 device, system, ball
- 13581 480x800 surface, system, diagram
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