英语词汇“congo red paper”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	congo red paper
释义	Congo red paper Con·go red pa·per paper impregnated with Congo red; used as a pH indicator, changing from blue-violet at 3 to red at 5.
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Congo red paper