abacus
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abacus |
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| navigate by keyword : abandoned accurate adopted advanced ancestors ancient ascendant azerbaijan baku bead became because but calculation calculator china classified completely computational computer countries dynasty easily flexible heritage hometown humanity intangible many non northern originated quickly replace simple since string tend therefore today tool tools widely working x27 |
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| Abacus beads is a simple calculation tool inventions of our ancestors, abacus beads originated in the Northern Song Dynasty, Song file string bead. The abacus is a simple calculation tool Han working people inventions. China is the hometown of the abacus, the computer has been widely used today, the ancient abacus is not only not been abandoned, but because it's flexible, accurate, and in many countries in the ascendant. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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