litmus paper
英 [ˈlɪtməs ˈpeipə] 美 [ˈlɪtməs ˈpeɪpər]

释义

石蕊试纸；

英英释义

litmus paper

• n.unsized paper treated with litmus for use as an acid-base indicator

双语例句

用作名词(n.)

1. Litmus paper turns red in the presence of an acid.
   石蕊试纸遇到酸就变红。
2. We test the liquid for acidity with a strip of litmus paper.
   我们用一条石蕊试纸来试验这液体是不是酸性的。

权威例句

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