Looking towards Berlin from their fastnesses in the Ruhr and southern Germany.
从德国的南部城市到鲁尔区的重要的经济地区再看向柏林。
The color fastnesses of these dyes were 4-5, and three of these dyes had high lightfastness of 6-7.
所有染料的色牢度均在4 ~ 5之间，有三个品种的耐光牢度达到了6 ~ 7级。
Disperse dyes are suitable for dyeing PU fiber, high uptake and satis factory fastnesses were observed.
分散染料是氨纶染色的理想染料，它具有较高的上染率和较好的染色牢度。
A new water-soluble sulfur black was applied in dyeing of cotton textile. The dyeing methods were studied and colour fastnesses of the dyed cotton were tested.
用含有葡萄糖基的新型水溶性硫化染料在纯棉织物上进行应用，研究了染色方法并测试了染色牢度。
A new water-soluble sulfur black was applied in dyeing of cotton textile. The dyeing methods were studied and colour fastnesses of the dyed cotton were tested.
用含有葡萄糖基的新型水溶性硫化染料在纯棉织物上进行应用，研究了染色方法并测试了染色牢度。
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