The dyeing properties of new non-azo dye (Leather Black LR-N) for leather were studied by Color Difference analysis and UV-Vis spectroscopy.
本文利用色度色差分析及紫外可见吸收光谱等研究了非偶氮皮革专用新型染料一皮革黑LR-N的染色性能。
With its manufacture grinding tool, is suit to processing tensile strength low metal and the nonmetallic material, for instance n-ferrous metal, stone material, leather, rubber and so on.
用其制作磨具，适用于加工抗张强度低的金属和非金属材料，如：灰铸铁、有色金属、石材、皮革、橡胶等。
With its manufacture grinding tool, is suit to processing tensile strength low metal and the nonmetallic material, for instance n-ferrous metal, stone material, leather, rubber and so on.
用其制作磨具，适用于加工抗张强度低的金属和非金属材料，如：灰铸铁、有色金属、石材、皮革、橡胶等。
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