That treaty recognised five nuclear powers—America, Russia, China, France and Britain.

核不扩散条约承认5个核大国——美国，俄罗斯，中国，法国，英国。

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Any agreement would put pressure on Britain, which has 160 nuclear warheads, and other nuclear powers to reduce their stockpiles.

双方达成的任何协议都会对拥有一百六十枚核弹头的英国及其他有核国家造成减少核武备的压力。

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India and Pakistan are DE facto nuclear powers.

印度和巴基斯坦是事实上的核国家。

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House of Representatives Foreign Affairs Committee chairman Howard Berman voiced hope the new treaty will set an example for other nuclear powers and help strengthen global nonproliferation efforts he says "severely threatened" by Iranian and North Korean efforts to acquire nuclear weapons.

VOA: standard.2010.03.26

The cornerstone of this is the Nuclear Non-Proliferation Treaty, which considers only five countries as nuclear-weapons powers.

VOA: standard.2009.09.29

Iran argues that it has a right to nuclear energy, a point of agreement with Western powers.

VOA: standard.2009.09.28

Only three countries in the world are credible nuclear powers: the United States, Russia and China.

CNN: ASIANOW - Asiaweek | Intelligence | Japan: Self-Destructing

They have fought three wars since independence in 1947 and are now nuclear powers.

BBC: Pakistan film makes India record

Neither country, it was said, would be accepted into the club of official nuclear powers.

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