弹道导弹潜艇是以洲际弹道导弹为主要武器的潜艇，又称为战略潜艇或战略导弹潜艇。弹道导弹潜艇除前苏联第一代潜艇外，其余均为核动力推进。
现在国防部已经通知国会说，海军将会设计下一代可以灵活适应女性船员居住的弹道导弹潜艇。
Now the Defense Department has notified Congress that the Navy will design the next generation of ballistic-missile submarines with the flexibility to accommodate female crew members.
在过去的两年里，它开发出至少一种新型的核动力弹道导弹潜艇，称为“晋”级，并且可能开发出大约五种以上。
Over the past two years, it has deployed at least one of a new type of nuclear-powered ballistic-missile submarine called the Jin class and it may deploy as many as five more.
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。
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.
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