Under it, Iran would give up most of its uranium stockpile in return for enriched fuel for a medical reactor.

根据这份合约，伊朗将放弃它的大多数储备铀以换取医用反应器的高浓度燃料。

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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.

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。

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Under that arrangement, Russia is providing the enriched uranium fuel for the reactor.

根据有关安排，俄罗斯正在为这个核反应堆提供浓缩铀。

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The IAEA draft deal calls for Iran to ship its stockpile of low-grade enriched uranium to Russia to be transformed into more highly enriched uranium for use in Tehran's medical research reactor.

VOA: standard.2009.10.28

On Monday,Iran formally notified the IAEA of its response to the nuclear-fuel swap deal, under which it would ship some low-enriched uranium to Turkey in return for higher grade fuel for a Tehran research reactor.

VOA: standard.2010.05.25

She urged the Tehran government to give a definitive answer to an offer by major powers to further process Iranian enriched uranium outside that country to resupply a Tehran reactor, running low on fuel, that produces isotopes for medical purposes.

VOA: standard.2009.11.09

For uranium to work in a nuclear reactor it must be enriched to contain 2-3% uranium-235 while weapons-grade uranium must contain 90% or more uranium-235.

BBC: Iran installing new Natanz centrifuges, says IAEA

The idea was for Iran to ship 1, 200kg of its low-enriched uranium overseas to produce fuel for a research reactor, thus leaving the country for a while with too small a stockpile with which to make a bomb.

ECONOMIST: Lexington

U.S. and United Nations officials have documented what they describe as serious limitations in Iran's ability to quickly and efficiently produce the enriched uranium required to either fuel a nuclear power reactor or to build an atomic weapon.

WSJ: North Korea Nuclear Find Raises Fears It Will Share With Iran