衣物護欧路词典

spectral type

S 开头单词

柯林斯词典

    spectral type (also spectral class)

  • 1. N any of various groups into which stars are classified according to characteristic spectral lines and bands. The most important classification (Harvard classification) has a series of classes O, B, A, F, G, K, M, the series also being a scale of diminishing surface temperature 光譜型

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