保温commonJLPT N1
Noun
Noun, Suru verb, Intransitive verb, Transitive verb
1.retaining warmth; keeping heat in; heat insulation
Example sentences
USBバスパワーで暖かい飲み物の入ったカップを保温しておくという製品が発売された。
A product has been launched that uses the power from the USB to keep hot drinks warm.
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