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1·Blue, is mainly used to extract from the blue grass of indigo dye.

青色，主要是用从蓝草中提取靛蓝染成的。

2·The regeneration of the activated carbon adsorbed and saturated by cationic indigo dye solution was studied.

本文对被阳离子艳蓝染料溶液吸附饱和的活性炭进行了再生试验研究。

3·The synthesis of aniline was used to make mauveine (aniline purple) dye and the synthesis of quinine was used to make indigo dye.

苯胺的合成法被用于制造苯胺紫染料，而奎宁（或金鸡纳碱）的合成法则被用于制造靛蓝染料。

4·The indigo dye waste water is used traditional methods to achieve the ideal processing effect with so many difficulties that industry is always puzzled by the indigo waste water treatment.

靛蓝染料废水采用传统的方法难以达到理想的处理效果。因而，靛蓝废水治理一直是困扰水处理界的一大难题。

5·The blue dye is obtained from the indigo plant.

蓝色染料是从靛蓝植物中提取的。

6·The blue vat dye obtained until about 1900 entirely from some species of the indigo plant.

直到大约1900年，蓝色还原染料都是从靛蓝植物中提取的。

7·The dye extracted from the indigo is bluer than the plant; so is the ice colder than the water.

青取之于蓝，而青于蓝；冰，水为之，而寒于冰。

8·It was around this time that synthetic indigo, better suited to mass production, replaced the natural dye.

正是在这个时候，更适合大规模生产的合成靛蓝取代了天然靛蓝。

9·Indigo: Blue VAT dye, obtained until about 1900 entirely from some species of the indigo plant.

靛蓝蓝色还原染料，约在1900年以前，一直是从木蓝植物获得。

10·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.

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。