By means of Porter's Theory, an analytical technique, the article analyses the five powers that decide the competitive scale and degree, and estimates the products'attractiveness to customers.

通过波特五力模型这一竞争战略分析工具，分析决定竞争规模和程度的五种力量，判断产品对客户的吸引力；

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China is the only one among the five nuclear powers to publicly declare no first use of nuclear weapons and no use of nuclear weapons against non-nuclear states.

中国是五个核大国中唯一一个公开宣布不首先使用核武器，不对无核国家使用核武器的国家。

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The five leading Western powers - the United States, Germany, the United Kingdom, France and Canada - accounted for 44 percent of total global manufacturing between them.

美国、德国、英国、法国和加拿大这五个超级大国占据了全球44%的全球生产总量。

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

VOA: standard.2009.09.29

Why do the five powers feel they should be the only members in this group.

BBC: India's nuclear tests: cause for concern?

The five nuclear powers joined the nuclear non-proliferation treaty as five nuclear powers with a long-term aim of getting rid of those nuclear weapons.

BBC: India's nuclear tests: cause for concern?

If you look at the Nuclear plan being unveiled by the US and while the five nuclear powers continue to stock US Nuclear weapons.

BBC: India's nuclear tests: cause for concern?