Iran has begun installing 6,000 new centrifuges at its main nuclear site in Natanz,Tuesday,state media quoted President Mahmoud Ahmadinejad as saying.

• 周二；伊朗国家电视台引用总统内贾德的话说；伊朗已经开始在纳坦兹核工厂安装6000个新的离心机.