单词 | colour index |
释义 | Word Frequency colour index or US color index noun 1. astronomy the difference between the apparent magnitude of a star measured in one standard waveband and in a longer standard waveband, indicating its colour and temperature 2. geology the sum of the dark or coloured minerals of a rock, expressed as a percentage of the total minerals 3. chemistry, physics a systematic arrangement of colours according to their hue, saturation, and brightness |
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