Beijing China, February 21, 2023: JSZ-20 Flying Fish Hand Computer, China railway museums, Beijing.

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Size: 9412px × 6275px
Photo credit: © YongXin Zhang / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: advanced, beijing, calculation, china, close-, computer, device, equipment, exhibition, indoor, machinery, manual, model, museum, railway, technology, transportation