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    litmus paper

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    litmus paper

    Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++
    Related topics: Chemistry
    ˈlitmus ˌpaper noun [uncountable]  HCpaper containing litmus, used to test whether a chemical is an acid or an alkali 石蕊试纸
    Examples from the Corpus
    litmus paper• The use of litmus paper furnishes another example of such a transformation.• In a drawer the litmus paper mused upon which way to turn.• The litmus paper turned red when immersed in the liquid.
    ˈlitmus ˌpaper nounChineseSyllable
    whether used chemical containing Corpus to a test paper litmus,


    litmus paper
    ˈlitmus ˌpaper noun [uncountable]
    paper containing litmus, used to test whether a chemical is an acid or an alkali