| 11. | When this happens, automakers will junk the internal combustion engine, Sadoway predicted.
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| 12. | Small engines date back to the early days of internal combustion engines.
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| 13. | The outcome has been an internal combustion engine that's incredibly competitive ."
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| 14. | Internal combustion engines and Stirling engines have been built using this mechanism.
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| 15. | _Internal combustion engines ( motor transport, air transport, superhighways, supermarkets, suburbs );
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| 16. | The internal combustion engine is a prime culprit behind global climate change.
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| 17. | These alcohols can be used in internal combustion engines as alternative fuels.
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| 18. | Hydrogen could eventually replace conventional fossil fuels in traditional internal combustion engines.
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| 19. | New concepts in octane boosting of fuels for internal combustion engines.
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| 20. | Hybrids use an internal combustion engine mated to an electric motor.
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