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因此，大部分的乏燃料棒依然保存在乏燃料池里。 As a result, much of it remains in utility holding pens. | ||
3月11日地震时，四号反应堆乏燃料池中的燃料棒处于活动状态。 The active rods were in that pool when the March 11 quake struck. | ||
据信中透露：“乏燃料棒再处理已经进入了最后阶段，与此同时镮的武器化也正在进行。” "Reprocessing of spent fuel rods is at its final phase and extracted plutonium is being weaponised, " it said. | ||
燃料棒的锆合金棒体开始和蒸汽反应。 The fuel rods' zirconium casings then begin to react with the steam. | ||
所幸，乏燃料棒的辐射量及其产热量在开始几天和移出反应核之后的几周里都在不断下降。 Fortunately, the radioactivity of spent fuel—and therefore its ability to generate heat—drops fairly rapidly in the first few days and weeks after it is removed from the core. | ||
各个乏燃料池的状态还不清楚，这种情况令人不安。 The status of the various spent fuel stashes is not clear, which is disturbing. | ||
燃料棒中间密封着真正的燃料——氧化铀的陶瓷芯。 Inside those fuel rods is sealed the actual fuel, little ceramic pellets of uranium oxide. | ||
这是一个传统的水下发光的燃料棒镜头。 This is a traditional fuel rod lens that glows underwater. | ||
然后，会在容器外的乏燃料里出现事故,这是在里面，这是在外面。 Then you have accidents in the spent fuel outside of containment. This is inside and this is outside. | ||
沃尔德说，当一开始设计核电厂时，监管机构预计，乏燃料棒应该存放在冷却水池里，五年以后捞出来，再经过化学处理而转化为钸。 When nuclear plants were designed, says Wald, regulators anticipated that spent fuel rods would sit in cooling water pools for five years and then be chemically processed and turned into plutonium. | ||
