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plutonium
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以下为句子列表:
英文: A fresh six-party agreement reached last February has resulted in the admission of international nuclear inspectors and the shutdown of North Korea's Yongbyon complex, which had produced bomb-grade plutonium -- in return for 50,000 tons of heavy fuel oil.

中文: 今年二月新的六方会议达成统一意见并获得国际核巡查员的同意,关闭朝鲜平壤的综合实验室,该实验室已经从5万吨重质燃油中提取了炸弹级。       更详细...
英文: All the more important, then, to keep a close eye on plants that produce quantities of such dangerous materials—especially where uranium is enriched and plutonium is extracted from spent fuel.

中文: 然后,更重要的是要密切监视生产这种危险燃料的核工厂,特别是进行铀浓缩和从废料中分离的那些地方。       更详细...
英文: Although almost all this material, which has a 24,000-year half-life, has since disappeared (primarily through natural radioactive decay), some of the plutonium itself underwent fission, as attested by the presence of its characteristic fission products.

中文: 这些物质半衰期为2万4000年,几乎已经全部消失(主要是经由自然的放射衰变过程),而且部份的钸本身又经过核分裂,这可由其核分裂产物为证。       更详细...
英文: By getting away with freezing just plutonium production last time, North Korea managed to prevent inspectors from the International Atomic Energy Agency, the UN's nuclear guardian, from snooping anywhere else.

中文: 最近一次,朝鲜通过仅仅冻结的生产而避人耳目,成功地阻止了联合国核卫士——国际原子能机构核查人员对其他设施进行检查。       更详细...
英文: Cowan described, for example, how some of the neutrons released during the fission of uranium 235 were captured by the more abundant uranium 238, which became uranium 239 and, after emitting two electrons, turned into plutonium 239.

中文: 例如,柯文描述了某些铀235分裂所释放的中子,如何被含量更多的铀238捕捉而产生铀239,在放射出两个电子后又变成钸239。       更详细...
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