spectral class的用法和樣例：
例句
- The origins of stars of differing spectral types must be dissimilar.
不同光譜型星的起源必然是不一樣的。
spectral class的相關(guān)資料：
臨近單詞
spectralyzer
spectral
Spectral line intensity method
spectral analysis of operators
spectral representation method
Spectral subtraction algorithm
spectral luminosity efficiency
spectral distribution function
spectral-splitting technology
spectral amplitude distribution
Spectral scattering coefficient
spectral irradiance measurement
