Concluding this treaty would be a real achievement for Mr Obama - but it would follow three previous nuclear disarmament deals and it would not visibly alter the balance of power in the world.

签署了这个协议，奥巴马就有了实际的成就——但它排在前三个核装备协议之后，世人无法明显地看到权力的分布到底倾斜了没有。

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Daryl Kimball, the executive director of the Arms Control Association in Washington, said: "the two sides clearly want a result and it's likely they will produce a follow-on treaty to Start."

位于华盛顿的军控协会的执行主任Daryl Kimball称：“显然双方都想要一个结果，他们达成START的替代条约是可能的。”

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Last July President Barack Obama and his Russian counterpart, Dmitri Medvedev,agreed to work on a follow-on treaty to START-One.

VOA: standard.2009.12.07

Initial expectations for Copenhagen have been scaled back to try to reach political agreement on a framework, with a detailed, binding treaty to follow.

VOA: standard.2009.12.06

He outlined five areas to focus on, including the need for a verifiable and legally binding fissile material cut-off treaty and a possible follow-up meeting in New York to the 2009 Security Council summit hosted by President Obama.

UN: Secretary-General

On the most immediate challenge, working out an arms control agreement to replace the START I treaty which expires December 5, the two presidents signed a joint understanding for a follow-on agreement to START that commits both parties to a legally binding treaty that will reduce nuclear weapons.

CNN: Obama moves to bolster U.S.-Russia ties

This happens also to be the stated view of forty-one United States Senators who warned President Obama in writing last month not to bring forward his START follow-on treaty without such a comprehensive - and funded - modernization program.

CENTERFORSECURITYPOLICY: Stopping START