RTGs power many space missions — including NASA's Cassini and New Horizons probes — as the slow decay of small pellets of radioactive material produces heat that can be turned into electricity.

RTG已为许多太空任务提供动力，包括美国宇航局的“卡西尼号”和“新视野”探测器。在放射性物质的小球衰退过程中可以产生出热量，从而将其转化为电能。

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A variety of chemical batteries have been tried, as well as inductive recharging schemes and even plutonium power cells that convert the heat from radioactive decay into electricity.

尝试了各种化学电池以及感应充电计划，甚至是将放射衰变的热能转换为电能的钚电源单元格。

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PLC power control system, having been developed, simulated the transient process of the core decay power from 8% full power to 2% full power while blackout accident.

开发PLC功率调节系统，模拟了全厂断电事故工况下堆芯衰变功率从堆芯8%额定功率到堆芯2%额定功率的变化过程；

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If the cooling system were to lose power during the initial decay period of 24 to 48 hours, a meltdown would likely follow.

FORBES: U.S. Military Scrambles to Avoid Nuclear Meltdown in Japan