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单词 heat radiation
释义 heat radiation(radiant heat)
Energy in the form of electromagnetic waves emitted by a solid, liquid, or gas as a result of its temperature. It can be transmitted through space; if there is a material medium this is not warmed by the radiation except to the extent that it is absorbed. Although it covers the whole electromagnetic spectrum, the highest proportion of this radiation lies in the infrared portion of the spectrum at normal temperatures. See black body; Planck's radiation law; Stefan's law; Wien's displacement law
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更新时间:2025/6/23 18:44:59