While reactor 4 was shut down at the time the earthquake occurred, there is concern there and at the other reactors about the pools containing used or spent uranium fuel rods.

尽管4号反应堆在地震时已经关闭，乏燃料棒的贮存池仍然令人担忧。危机应对的关键仍在于冷却燃料和控制泄漏，要做的工作有很多。

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Thus, certain pitchblendes containing 75% of uranium oxide are about four times as radioactive as this oxide.

比如，含75％氧化铀的某种沥青铀矿物质的放射性是铀氧化物放射性的4倍。

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This paper describes the solvent extraction of germanium from the leached solution of uranium - and germanium-containing lignite ash.

本文叙述了从含铀锗褐煤灰的浸出液中萃取锗的研究。

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If these tests are successful, Khazaneh said, "then the next tests, with fuel rods containing enriched uranium, will take place near the end of 2009, " ISNA reported.

CNN: Iran to test nuclear power plant

The United Nations Environment Programme (UNEP) is calling for an assessment of bombed sites containing weapons with depleted uranium.

CNN: Food, medicine convoys enter Iraq

The authority has also proposed moving other material called "exotics", which includes fuel containing highly-enriched uranium, from Dounreay to Sellafield at a later date.

BBC: Nuclear material moved by train from Scotland to England