Enriching raw uranium is more expensive than converting highlyenriched uranium to fuel grade.
浓缩原铀比将高浓缩铀转化至燃料品级更昂贵。
2
Professor Bunn says there are currently about 130 research reactors around the world that still use highlyenriched uranium for fuel.
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。
3
It calls for Iran to trade about 80 percent of its domestically produced low-grade uranium for more highlyenriched nuclear fuel from France and Russia.