| 11. | However, all USAF Phantoms retained dual flight controls throughout their service life.
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| 12. | Discussion of product lifetimes stretches beyond consideration of the service life concept.
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| 13. | This would have given her an additional 10 years of service life.
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| 14. | The lights have an expected service life greater than five years.
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| 15. | In the course of its service life, 50 units were produced.
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| 16. | The stated service life of the barrel is 20, 000 rounds.
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| 17. | The model 500 telephone was designed for a long service life.
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| 18. | This feature was designed to extend the weapon s service life.
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| 19. | The Navy continued the LCAC Service Life Extension Program in Fiscal Year 2001.
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| 20. | These structures can be significantly lighter and usually have a longer service life.
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