Iran's conversion of uranium, laser enrichment and fuel production programs have already been placed under the routine safeguards monitoring.

伊铀转化、激光浓缩、燃料制造等项目已经转入正常保障监督。

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The Isfahan conversion plant, which produces uranium hexafluoride (UF6, the uranium compound that is passed as a gas into the centrifuges to be enriched), is above ground and vulnerable to attack.

伊斯法罕的铀转化设施，是生产六氟化铀(UF 6，一种铀化合物转化为气体，进入离心机进行浓缩)的装置，在地表以上易于攻击。

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But the utilization of coal, oil, natural gas and uranium is the conversion and destruction of resources, and causes tragedy effects to the human and environment.

但煤炭、石油、天然气和铀的利用，是对资源的转换和毁灭，给人类和环境带来灾难性的后果。

youdao

In August, Iran restarted a process known as uranium conversion at a facility in Isfahan.

NPR: Iran's New President Stirs Political Turmoil

If after many months of delay uranium conversion actually does start next week, then the West will have to deliver on many threats of international action, something which has not figured in the North Korean negotiations.

NPR: Iran's Leader May Favor a Showdown

Several times Iran postponed the resumption of uranium conversion, which can be a step towards fashioning a nuclear bomb, while Britain, France and Germany, with American support, worked on a package of economic and political incentives for Iran to give up its nuclear plan.

NPR: Iran's Leader May Favor a Showdown