N 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 色指数 [astronomy]
The colour index difference Q decreases with the increase of d.
随着子源间线距d的增大，色指数差q下降。
A new technology of high concentration organic chemical sewage treatment for COD and colour index is presented.
提出了一种处理高浓度有机化工废水中COD、色度的新技术。
The application of visual reflectance, colour tone, saturation degree and colorimetric coordinates of colour index are all useful for qualitative observation.
本文阐述了颜色指数的视觉反射率、色调、饱和度、色度坐标在定性观察方面的应用。
应用推荐