一旦反应堆关闭，它仍热存在有来自其他放射性同位素踪迹的衰变热。
Once the reactor has shut down, there remains "decay heat" from traces of other radioactive isotopes.
可用于深空探测等领域的放射性同位素温差发电器利用半导体热电元件直接将放射性同位素的衰变热转化为电能。
The radioisotope thermoelectric generator which is employed in deep space exploration, converts heat from the natural decay of radioisotope materials into electrical power directly.
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