伊朗坚决拒绝停止浓缩铀项目，它说该项目是为了给民用反应堆提供燃料，而西方国家和其他国家怀疑这是掩盖制造核武器的借口。
Iran has steadfastly refused to halt its nuclear-enrichment programme, which it says is to make fuel for civil reactors but which the West and others suspect is a cover to develop nuclear weapons.
科学家一直在寻找更简单的方法制造名为浓缩铀的昂贵材料- - - - - -核反应堆和炸弹的燃料，现在只在大型工厂生产。
Scientists have long sought easier ways to make the costly material known as enriched uranium - the fuel of nuclear reactors and bombs, now produced only in giant industrial plants.
原想这是一次富有魅力的进攻，可是它取得了适得其反的效果，因为穆塔基坚称即使研究反应堆的协议通过，伊朗也会继续自行生产20%的高浓缩铀。
Intended as a charm offensive, it backfired when Mottaki insisted that even if the research reactor deal went through, Iran would continue to produce its own 20%-enriched uranium.
内贾德这周提出接受西方的方案，并用低浓缩铀交换反应堆所用的燃料。
Ahmadinejad this week offered to take the West's deal and trade it for fuel for its reactor.
这些知情人士称，据另一份合同，预计Areva将向CGNPC其他拟议中的较小型核反应堆提供浓缩铀。
Under a separate contract, Areva is expected to supply uranium for other, less powerful reactors that CGNPC plans to build.
此外，伊朗与6国大体达成一项协定同意将部分低浓缩铀储备运送到国外提炼，用来支持德黑兰的一个研究反应堆。
An agreement in principle to ship some of Iran’s mounting stocks of low-enriched uranium abroad for further processing, to supply a research reactor in Tehran.
根据新协议，一年内，伊朗将向土耳其输送1200千克储备低纯度浓缩铀以交换其120千克浓缩铀（纯度约20%）用以生产药用（特别用于癌症的治疗）同位素的研究用反应堆。
Under the new deal, Iran says it would send 1,200 kg of its stockpile of low-enriched uranium to Turkey.
根据有关安排，俄罗斯正在为这个核反应堆提供浓缩铀。
Under that arrangement, Russia is providing the enriched uranium fuel for the reactor.
尤其必须立即采取行动，执行有关用伊朗自己提炼的低浓度浓缩铀为德黑兰作研究用的反应堆提供燃料的计划——该反应堆用于生产医用同位素。
In particular, prompt action is needed on implementing the plan to use Iran's own low-enriched uranium to refuel the Tehran research reactor, which is used to produce medical isotopes.
邦教授提到目前全世界大约有130个利用高浓缩铀作为燃料的反应堆。
Professor Bunn says there are currently about 130 research reactors around the world that still use highly enriched uranium for fuel.
走浓缩这条路，从20%到可用作造核弹的90%的浓缩所要花费的努力甚至比艰苦地做出开始的3.5%浓度的反应堆物质要少的多。 在纳坦兹，伊朗依然在生产3.5%浓度的浓缩铀。
In the way enrichment works, getting from 20% to bomb-usable 90% enrichment takes a lot less effort even than churning out the initial 3.5% reactor-grade stuff still piling up at Natanz.
呼吁以高浓缩铀作为核反应堆燃料的国家改用低浓缩铀。
It called on states with reactors burning high-enriched uranium to switch to the low-enriched sort.
有些国家正在清除其存储的可用于制造核武的高浓缩铀和钚，有些国家正在降低核反应堆扩散的风险，还有一些国家将在会议上签署协议并支持国际原子能机构的工作。
Some are getting rid of their stocks of highly enriched uranium or plutonium, both used in bombs. Others are lowering the risk of proliferation from reactors.
但是他不会在伊朗继续进行铀浓缩活动的时候给伊朗几乎要完成的核反应堆带去浓缩铀。
Yet he won't ship enriched-uranium fuel to Iran's all-but completed nuclear reactor while its enrichment work goes on.
按照这两个国家的计划，伊朗将把一些浓缩铀运往土耳其，换取伊朗医疗研究反应堆所需的燃料。
Under the two countries' plan, Iran would send some of its uranium to Turkey in exchange for fuel for use in a Tehran medical research reactor.
按照这两个国家的计划，伊朗将把一些浓缩铀运往土耳其，换取伊朗医疗研究反应堆所需的燃料。
Under the two countries' plan, Iran would send some of its uranium to Turkey in exchange for fuel for use in a Tehran medical research reactor.
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