| 释义 |
litmus paper ˈlɪtməsˈpeipə 短语⁸⁴³²⁰⁺⁸
基本英英例句Thesaurus
n.石蕊试纸
Noun:
unsized paper treated with litmus for use as an acid-base indicator用作名词Litmus paper turns red in the presence of an acid.石蕊试纸遇到酸就变红。
We test the liquid for acidity with a strip oflitmus paper.我们用一条石蕊试纸来试验这液体是不是酸性的。noun.acid-base indicator
同义词 indicator,reagent,testing agent |