It features that extraction liquid, strip-extraction liquor and raw material liquid flow in different layer, so resulting in short path of mass transfer, uniform film phase and high separation effect.
Aiming at the characteristic in feature extraction of cold steel strip surface defect images, a mixed feature extraction method of separable criterion based on class distance is proposed.
针对冷轧带钢表面缺陷图像特征提取的特点，提出了基于类距离可分离性判据的混合特征提取方法。
3
The optimum condition of the separation enrichment by column chromatography with activated charcoal and sodium sulfite strip and extraction of trace gold with TMK-isoamyl alcohol has been studied.