名词
中文翻译：光谱指数同义词
同义词：
['spectral index', 'spectral ratio']
例句：
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1.The spectral index of the light spectrum isused to determine its color.
光谱指数用于确定光的颜色。
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2. The spectral index of thelight spectrum is used to determine its color.
光谱指数用于确定光的颜色。
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3. The spectralindex of the light spectrum is used todetermine its color.
光谱指数用于确定光的颜色。