短語詞組短語spectral line type 譜線線形spectral type diagram 光譜型圖spectral type of star 光譜型spectral class or type 光譜型early spectral type 早光譜型Star Spectral Type 譜類型doppler spectral type 多普勒譜型spectral type curve 譜型圖spectral type of stars [天]恒星光譜型 返回 spectral type