| 单词 | fast red |
| 释义 | fast rednounoften capitalized F&R : any of several fast red azo dyes: such as a : a monoazo acid dye that dyes wool and silk red called also Fast Red A b : a monoazo acid dye that dyes wool and silk claret and is used chiefly as a biological stain called also Bordeaux B, Bordeaux red, Fast Red B |
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