名词
中文翻译：光谱指数
同义词：
['spectral index', 'spectral index例句：1. The spectrum index is used to measure the amount of light in a given wavelength range.（光谱指数用于测量给定波长范围内的光量。）2. The researcher found that the spectrum index had a significant impact on the accuracy of the results.（研究人员发现，光谱指数对结果的准确性有显著影响。）']
例句：
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1. The spectrum index is used to measure the amount of light in a given wavelength range.
光谱指数用于测量给定波长范围内的光量。
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2. The researcher found that the spectrum index had a significant impact on the accuracy of the results.
研究人员发现，光谱指数对结果的准确性有显著影响。
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3.The spectrum index was used to identify the presence of certain elements in the sample.
光谱指数被用来识别样本中某些元素的出现。