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litmus test

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漢語翻譯

【機】 石蕊試驗

英文解釋:

名詞 litmus test:

  1. a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator
    同義詞:litmus
  2. a test that relies on a single indicator

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