Last Updated
：2025/11/25
RHU
Noun
abbreviation
alt-of
initialism
Japanese Meaning
放射性同位体ヒーター単位─放射性物質の自然崩壊により生じる熱を利用する装置
（ plural ）
Quizzes for review
(space science, robotics) Initialism of radioisotope heater unit. (a device that generates heat from the natural decay of radioactive material)
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RHU
The lander carried an RHU to keep its instruments warm during the lunar night.
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The lander carried an RHU to keep its instruments warm during the lunar night.
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English - English
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