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  1. Ethylene - Wikipedia

  2. Ethylene | Structure, Sources, Production, Uses, & Facts | Britannica

  3. エチレン - Wikipedia

  4. Ethylene | CH2=CH2 | CID 6325 - PubChem

  5. Ethylene - NIST Chemistry WebBook

  6. Ethylene - Encyclopedia.com

  7. Ethylene - New World Encyclopedia

  8. Ethylene - WikiChem - Potsdam

  9. Ethylene - NIST Chemistry WebBook

  10. Ethylene - NIST Chemistry WebBook