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。
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。
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。
This method is suitable for treatment of low level uranium-containing waste water.
本方法适用于低水平含铀废水的处理。
This method is suitable for treatment of low level uranium-containing waste water.
本方法适用于低水平含铀废水的处理。
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