英语词汇“grey body”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

grey body n. Physics an idealized object which absorbs and emits, at each wavelength, some constant fraction of the radiation emitted by a black body at the same temperature; cf. black body n.

ΚΠ

1906 Proc. Physical Soc. 20 33 If the temperature of the black body were reduced a little, so as still to be higher than that of the grey body, the grey body would radiate and the black absorb.

1923 Proc. Royal Soc. A. 102 435 These gases have an equilibrium temperature in the neighbourhood of that of a grey body, i.e., 280°.

1989 Times 20 Mar. 17/6 Were it not for the greenhouse effect of the atmosphere, the Earth would be at what is known in astronomy as the grey-body temperature.

2007 J. A. Irwin Astrophysics iv. 139 The Earth, being a grey body, then emits a Planck spectrum at a (globally averaged) temperature.

单词	grey body
释义	> as lemmas grey body grey body n. Physics an idealized object which absorbs and emits, at each wavelength, some constant fraction of the radiation emitted by a black body at the same temperature; cf. black body n. ΚΠ 1906 Proc. Physical Soc. 20 33 If the temperature of the black body were reduced a little, so as still to be higher than that of the grey body, the grey body would radiate and the black absorb. 1923 Proc. Royal Soc. A. 102 435 These gases have an equilibrium temperature in the neighbourhood of that of a grey body, i.e., 280°. 1989 Times 20 Mar. 17/6 Were it not for the greenhouse effect of the atmosphere, the Earth would be at what is known in astronomy as the grey-body temperature. 2007 J. A. Irwin Astrophysics iv. 139 The Earth, being a grey body, then emits a Planck spectrum at a (globally averaged) temperature. extracted from greygrayadj.n. < as lemmas
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> as lemmas