In order to improve the contrast of reconstruction images for the materials which their elements absorbance index are very close, the technique of diffraction enhanced SR-CT is developed.
针对吸收系数相近的多组分材料，吸收成像无法分辨的情形，提出了衍射增强SR - CT方法。
Main Outcome Measures Absorbance and apoptosis index.
主要指标吸光度，凋亡指数。
Low shrinkage, low optical absorbance, low refractive index adhesive composition.
低收缩率，低光学吸收率，低折光指数粘合剂组合物。
The extraction conditions and stability of Senecio pigment were studied using Senecio flowers yellow pigment characteristic absorbance value as index.
采用有机溶剂浸提法，以千里光花黄色素特征吸光度值为指标，探讨了千里光花黄色素的提取条件和稳定性。
The extraction conditions and stability of Senecio pigment were studied using Senecio flowers yellow pigment characteristic absorbance value as index.
采用有机溶剂浸提法，以千里光花黄色素特征吸光度值为指标，探讨了千里光花黄色素的提取条件和稳定性。
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