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。
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。
The ancient dying method of indigo may be classified as follows: condensation, natural fermentation VAT and man-made fermentation VAT.
靛蓝的古代染色方法可分为缩合染色法、自然发酵还原染色法和人工发酵还原染色法。
The ancient dying method of indigo may be classified as follows: condensation, natural fermentation VAT and man-made fermentation VAT.
靛蓝的古代染色方法可分为缩合染色法、自然发酵还原染色法和人工发酵还原染色法。
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