“baryon-to-photon ratio”的概念、定义、翻译、参考文献-科学参考

单词	baryon-to-photon ratio
释义	baryon-to-photon ratio [`bar·ē´än tǝ `fō´tän `rā·shō] ^ASTRONOMY The estimated ratio of the number of baryons (mostly protons and neutrons) to photons (mostly in the cosmic microwave radiation) in the universe.
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