The Navy plans to buy 12 ballistic-missile submarines to replace the 14 current Ohio-class, or Trident, boats that are nearing the end of their service lives.

海军计划购买12艘弹道导弹潜艇以更换正在服役的14艘俄亥俄级（三叉戟）潜艇，这些潜艇都快过服役年限了。

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Abby Marie Minneman, Miami University of Ohio, class of 2009, accountant major.

迈阿密大学俄亥俄分校，2009级，会计专业。

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SSBN(X) will not be just a warmed over remake of the Ohio class.

FORBES: The Submarine That Might Save America

It argues that the life of Vanguard-class boats can be stretched at most to 30 years, not to 44 years as the service of America's equivalent Ohio-class boats can be.

ECONOMIST: The decision to renew Trident was a foregone conclusion

In addition, planned replacement of the Ohio-class nuclear-ballistic-missile submarine has also been delayed, and no decision has yet been made on whether the U.S. next-generation strategic bomber force will even be capable of carrying nuclear weapons.

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