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  1. Ruthenium - Wikipedia

  2. Ruthenium - Element information, properties and uses | Periodic …

  3. Ruthenium | Chemical Element, Catalysts, Alloys | Britannica

  4. Ruthenium | Ru (Element) - PubChem

  5. Ruthenium | Ru | CID 23950 - PubChem

  6. Facts About the Element Ruthenium (or Ru) - ThoughtCo

  7. Ruthenium | History, Uses, Facts, Physical & Chemical

  8. Ruthenium (Ru) [44] — Chemical Element — Periodic Table

  9. 釕 - 維基百科,自由的百科全書

  10. Ruthenium (Ru) - The Chemical Elements