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  1. Locomotive - Wikipedia

  2. Locomotive | Definition, History, Design, Types, & Facts

  3. Steam locomotive - Wikipedia

  4. How steam locomotives work | Trains Magazine

  5. locomotive summary | Britannica

  6. History of technology - Steam Locomotive, Railroads, Industrial ...

  7. Locomotives: The power of railroading | Trains Magazine

  8. Locomotive - New World Encyclopedia

  9. Tracks in time: 200 years of locomotive technology

  10. How Diesel Locomotives Work | HowStuffWorks

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