希拉里·克林顿，美国国务卿，最近告知国会说，巴基斯坦已经将核弹头分散于不同地区以增强其安全度。
Hillary Clinton, the US secretary of state, told Congress recently that Pakistan had dispersed its nuclear warheads to different locations across the country in order to improve their security.
但是曾几何时，回收的前苏联核弹头占据了美国低浓缩铀的大部分市场。
But at times, recycled Soviet bomb cores have made up the majority of the American market for low-enriched uranium fuel.
今年一月，美国宣布其拥有1198个运载工具，军控委员会估计其配有2200个核弹头。
The United States reported in January that it had 1, 198 delivery vehicles, and the Arms Control Association estimates that it deploys 2, 200 warheads.
据称由美国发起的安全提升已经摧毁百分之七十五的包含武器原料的建筑物和百分之六十五的俄罗斯核弹头基地。
It says U.S.-sponsored security upgrades have been completed for 75% of the buildings that contain weapons-grade material and for about 65% of Russia's nuclear warhead sites.
世界上拥有数千枚核弹头的国家只有两个：美国和俄罗斯。
Only two countries on Earth possess thousands of nuclear warheads: the United States and Russia.
届时，美国和俄罗斯将减少各自战略核弹头数量至500枚，其他国家将按比例地减少其库存。
This would see America and Russia each cut their arsenals to 500 warheads each and the other states reduce their inventories proportionately.
这些数字不包括战术核弹头，据估计美国有500到600枚这样的弹头。
These numbers do not include tactical nuclear warheads, and it is estimated that the US has around 500 to 600.
现在，美国和俄罗斯就拥有数千可以从一个大陆打到另一个大陆的核弹头。
Right now, America and Russia hold thousands of nuclear war heads that can be launched from one continent to another.
现在北约只在5个国家，为美国和盟国空军布设了大约200枚自由落体式核弹，而俄罗斯则有几千枚核弹头。
It now has only about 200 free-fall bombs, stationed with American and allied aircrews in five countries-compared with several thousand Russian warheads.
Sort战略进攻武器裁军条约，或者是2002莫斯科条约，把美国和俄国部署的核弹头分别削减到1700- 2200枚，不过没有经过核查。
Sort Strategic Offensive Reductions Treaty, or 2002 Moscow Treaty, cuts us and Russian arsenals to 1, 700-2, 200 operationally deployed warheads each. No verification procedures.
2007年8月，空军某部一架载有6个核弹头的B-52轰炸机错误地飞越美国——对于像盖茨一样的冷战老勇士来说，这是一桩蠢事。
In August 2007, an Air Force unit mistakenly flew six nuclear warheads across the US on a B-52—a cardinal sin to an old Cold Warrior like Gates.
布什本可以完成这项任务，同时用更少但是更现代的核弹头来替代，但奥巴马更倾向于更新现有的一部分核弹头，他也打算进一步提升美国核武器研究所和其他相关设施。
Mr Obama prefers instead to refurbish some existing ones. He also plans to upgrade further America’s nuclear-weapons labs and other facilities.
只需要按动一下（核）按钮，美国和俄罗斯仍然能互相毁灭对方，他们仍然还有成千上万装载了核弹头的导弹部署在陆地和海洋。
The United States and Russia can still destroy each other at a push of a button and have thousands of missiles on the land or at sea armed with nuclear war heads.
美国和加拿大就“加拿大装配核弹头”问题开始谈判。
America negotiated with Canada on the question of "Canada equips nuclear warhead".
另据斯德哥尔摩国际和平研究所估计，中国2009年时所部署的战略核弹头为186枚，美国为2202枚，俄罗斯为2787枚。
The Stockholm International Peace Research Institute has estimated that by 2009 China had 186 deployed strategic nuclear warheads, compared to 2,202 for the United States and 2,787 for Russia.
美国科学家联合会最近估计中国有200枚核弹头，与美国的近一万枚相比要少得多。
With about 200 nuclear warheads according to a recent estimate by the Federation of American Scientists, China's arsenal is far smaller than the United States' near 10,000.
美国科学家联合会最近估计中国有200枚核弹头，与美国的近一万枚相比要少得多。
With about 200 nuclear warheads according to a recent estimate by the Federation of American Scientists, China's arsenal is far smaller than the United States' near 10,000.
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