作为 Masurium，它是在自然界中发现的第一种只能通过自然裂变产生的元素；作为锝，它是在实验室中发现的第一种元素。
As Masurium, it was the first element discovered that occurs in nature only from spontaneous fission, and as Technetium, it was the first element discovered in a laboratory.
这些放射性元素为核电站裂变发电时的副产品。
These radioactive elements are by-products of the fission reaction that generates power in the nuclear plants.
然后其余的铀后元素被转移到燃烧炉中裂变为更稳定的材料。
Then the remaining transuranics would be transferred to a burner to be fissioned into more stable materials.
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