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单词 Kirchhoff's law
释义 Kirchhoff's law
[`kǝrk´hōfs ´lȯ]
ELECTRICITY
Either of the two fundamental laws dealing with the relation of currents at a junction and voltages around closed loops in an electric network; they are known as Kirchhoff's current law and Kirchhoff's voltage law.
THERMODYNAMICS
The law that the ratio of the emissivity of a heat radiator to the absorptivity of the same radiator is the same for all bodies, depending on frequency and temperature alone, and is equal to the emissivity of a blackbody. Also known as Kirchhoff's principle.
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