Some byproducts of the nuclear fission are themselves radioactive.These decay, producing heat.

有些核裂变产生的副产品自身具有放射性。这些物质的衰变，也在产生热能。

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In this paper the progress and prospect of utilization of nuclear energy (decay, fission and fusion energy) are reviewed.

本文评述了核能(衰变能、裂变能、聚变能)利用的现状和前景。

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This paper summarized the research present situation of nuclear chemistry, mainly expounded the nuclear chemical reaction principle, including nuclear decay, nuclear fission and nuclear fusion.

综述了核化学的研究现状。主要阐述了核化学的反应机理，包括衰变，聚变和裂变；

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There are about 80 different sequences of decay that fission products can follow, and roughly a quarter reach a completely non-radioactive state within a day.

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Thermoelectric coupling uses heat from the decay of a radioactive fuel (as opposed to the full-scale nuclear fission which powers a reactor on Earth) as its energy source.

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