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单词 turmeric paper
释义 turmeric papern.(名词)
  1. Paper saturated with turmeric and used to detect the presence of alkalis, which turn the paper brown, or boric acid, which turns it red-brown.姜黄试纸:一种用姜黄抽出液浸渍过的纸,用以测试碱性物质时试纸变成棕褐色,用来测试硼酸时,试纸变成红褐色
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