| 单词 | indigo vat |
| 释义 | > as lemmasindigo vat indigo vat n. Π 1765 T. H. Croker et al. Compl. Dict. Arts & Sci. II. (at cited word) Mr. Hellot describes two indigo vats with urine. 1865–72 H. Watts Dict. Chem. III. 250 Woad..is now used only as an addition to the indigo-vat. 1874 C. Schorlemmer Man. Chem. Carbon Compounds 426 An ‘indigo-vat’ is prepared by mixing one part of powdered indigo with two parts of ferrous sulphate, three parts of slaked lime and 200 parts of water. < as lemmas |
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