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。
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.
本文叙述了用活性炭色层柱分离、亚硫酸钠解吸、TMK -异戊醇萃取比色测定痕量金的方法。
The paper compares the laser light strip geometric center extraction process method and the skeleton method, and adopts the skeleton method whose thinning precision is much higher.
本文通过对比激光几何中心提取法及骨架法，使用了细化精度更好的骨架法。
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