- 18082 240x400 system, shutdown, sign
- 21347 240x400 system, blue, device
- 22204 240x400 system, scheme, blue
- 15107 240x400 system, device, glass
- 12691 240x400 system, form, shape
- 10272 240x400 system, face, pink
- 12177 240x400 system, mechanism, device
- 15711 240x400 system, form, shape
- 19157 240x400 fail, system, code
- 12463 240x400 lock, system, words
- 36450 240x400 mechanism, system, gears
- 23276 240x400 ubuntu, system, multi-colored
- 31765 240x400 grid, system, green
- 15621 240x400 device, system, ball
- 13581 240x400 surface, system, diagram
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