名词
中文翻译：光谱型
同义词：
['spectral class', 'spectral type']
例句：
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1.The spectral type of the star can help us understand its age and distance from Earth.
这颗星的光谱类型可以帮助我们了解它的年龄和离地球的距离。
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2. The spectral type of the star is a key factor in determining its chemical composition.
这颗星的光谱类型是确定其化学成分的关键因素。
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3. Spectral analysis is used to study the properties of materials by analyzing their light absorption or emission spectra.
光谱分析是通过分析材料的光吸收或发射光谱来研究材料的性质。