The reflection rates of spectra of the canopy decreased in the near infrared waves and increased in the visible waves with increasing the plant densities.
随着种植密度的提高，光谱反射率在可见光波段降低，近红外波段增加。
Visible/near-infrared (VIS/NIR) diffuse reflectance spectra were applied to non-destructive measurement of surface color of pear.
应用可见/近红外漫反射光谱对梨表面色泽进行无损检测研究。
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