It calls for Iran to trade about 80 percent of its domestically produced low-grade uranium for more highly enriched nuclear fuel from France and Russia.

协议草案要求伊朗用80%的自行生产的低纯度的铀从法国和俄罗斯换取高浓缩的核燃料。

youdao

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

Both involve heating organic materials in a vacuum until they break down into carbon and vapors that can be condensed into a low-grade fuel oil.

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Last Sunday, the head of Israel's military intelligence reported that Iran has mastered the nuclear fuel cycle and can rapidly move from low-grade uranium enrichment to weapons-grade uranium enrichment.

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They will soon bioengineer bacteria to melt oil out of tar sands, turn grass into diesel fuel and scavenge natural resources of every kind out of low-grade, thinly dispersed deposits.

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