“period-luminosity relation”的概念、定义、翻译、参考文献-科学参考

单词	period-luminosity relation
释义	period-luminosity relation [`pir·ē·ǝd ´lü·mǝ`näs·ǝd·ē ri´lā·shǝn] ^ASTRONOMY Relation between the periods of Cepheid variable stars and their absolute magnitude; the absolutely brighter the star, the longer the period.
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