| 11. | The system failed because of gear train breakage, causing a fatal accident in 2001.
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| 12. | Planetary gear trains provide high power density in comparison to standard parallel axis gear trains.
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| 13. | A differential gear train can be used to allow a difference between two input axles.
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| 14. | A planetary gear train establishes the mechanical gear ratios.
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| 15. | Planetary gear trains provide high power density in comparison to standard parallel axis gear trains.
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| 16. | This forms a planetary gear train with a fixed carrier train ratio " R =-1 ".
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| 17. | Of course, the gear trains were made accordingly.
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| 18. | Another advantage of the digital computer over the gear train is that it is more evolvable.
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| 19. | The escapement drives the pendulum, usually from a gear train, and is the part that ticks.
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| 20. | And certainly not spring-driven gear trains that could be used to build things like mechanical clocks.
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