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单词 fast red
释义 fast red
noun
Usage: often capitalized F&R
: any of several fast red azo dyes: as
 a. : a monoazo acid dye that dyes wool and silk red — called also Fast Red A; see dye table I (under Acid Red 88)
 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; see dye table I (under Acid Red 17)
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