| 单词 | black-body spectrum |
| 释义 | > as lemmasblack-body spectrum C1. General attributive, as black-body radiator, black-body spectrum, black-body temperature, etc. ΚΠ 1901 Astrophysical Jrnl. 13 34 Observations of the distribution of energy in the black body spectrum were taken at many temperatures between 500° C. and 1100° C. 1907 C. W. Waidner & G. K. Burgess Radiation from & Melting Points of Palladium & Platinum 165 The black-body temperature, t0, is the temperature at which the ideal black-body radiator of Kirchhoff would emit radiation of the same intensity as a substance at a temperature t0 for the particular wave length under consideration. 1922 Jrnl. Optical Soc. Amer. 6 560 Average noon sunlight..corresponds roughly to a black body temperature of 5000° K. 1957 Encycl. Brit. III. 679/1 The black-body temperature of a source like the sun is the temperature at which a black body would emit radiation of the same intensity. 1989 R. Penrose Emperor's New Mind (1991) vii. 322 Further support..for the actual existence of the big bang, comes from what is known as the black-body background radiation. 2003 S. F. Green & M. H. Jones Introd. Sun & Stars (2004) iii. 101 The other stars, too, have spectra that are not very different from black-body spectra. < as lemmas |
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