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resorcinolphthalein的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
Noun:
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a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed)
