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[3]李伟，陈朝辉，王松。先进推进系统用主动冷却陶瓷基复合材料结构研究进展[J]。材料工程，2012，(11)：92 - 96。

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Even the spent fuel that has accumulated over 30 years of use is so radioactive it is hot enough to burn metal containers unless actively cooled 100% of the time.

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