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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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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Mexico, the United States and Canada pledged to work together to convert Mexico's research reactor to low enriched uranium.

墨西哥、美国和加拿大承诺将共同合作把墨西哥用于研究的反应堆转化成低浓度铀。

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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

The report says that in the last six months, Tehran enriched 970 kilos of uranium to reactor-grade levels, bringing its publicly known stockpile of low enriched uranium to 4, 105 kilos.

CENTERFORSECURITYPOLICY: A do or die moment

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