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

pulsation theory n. Astronomy a theory explaining the behaviour of certain types of variable stars as due to the expansion and contraction of, or ripples in, their outer layers.

ΚΠ

1924 Proc. National Acad. Sci. 11 266 This feature of the velocity curves of η Aquilæ occurs at the time of the greatest radial expansion of the star as a whole, on the basis of pulsation theory, with a lag phase of the upper layer.

1953 W. M. Smart Origin of Earth viii. 163 The most satisfactory theory accounting for the periodic physical changes exhibited by a Cepheid is the pulsation theory.

1993 S. Pottasch in A. Mampaso et al. Infrared Astron. (2003) ii. 82 General considerations from pulsation theory show that there is a pulsation ‘constant’ Q for a given type of star (e.g. red giant).

单词	pulsation theory
释义	> as lemmas pulsation theory pulsation theory n. Astronomy a theory explaining the behaviour of certain types of variable stars as due to the expansion and contraction of, or ripples in, their outer layers. ΚΠ 1924 Proc. National Acad. Sci. 11 266 This feature of the velocity curves of η Aquilæ occurs at the time of the greatest radial expansion of the star as a whole, on the basis of pulsation theory, with a lag phase of the upper layer. 1953 W. M. Smart Origin of Earth viii. 163 The most satisfactory theory accounting for the periodic physical changes exhibited by a Cepheid is the pulsation theory. 1993 S. Pottasch in A. Mampaso et al. Infrared Astron. (2003) ii. 82 General considerations from pulsation theory show that there is a pulsation ‘constant’ Q for a given type of star (e.g. red giant). extracted from pulsationn. < as lemmas
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> as lemmas