靛蓝染色纱线被浓硫酸溶解后，对得到的溶液进行分光光度分析。
The indigo dyed fibre or fabric was dissolved with concentrated sulphuric acid. The solution was analyzed spectrophometrically.
文章还对防染剂的选择、碎蜡的规律以及靛蓝染色和印花等问题进行了论述。
The selections of resist agents, the rules of wax breaking, indigo dyeing and some other problems on printing are also outlined.
我本来觉得它应该要更绿一点，因为靛蓝在接触氧之前是不会变蓝色的。也许在“染色浴”中的液体已经混进来一些氧了。
I had been expecting it to be greener because indigo is not supposed to turn blue until it comes in contact with oxygen, however, perhaps oxygen was already diffusing into the liquid of the dye bath.
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