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词汇
pH paper pH
释义
pH paper pH
基本
例句
试纸
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 of litmus paper.
我们用一条石蕊试纸来试验这液体是不是酸性的。
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Free salicylic acid
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Free samples are below-the-line advertising
Free samples are offered By this factory
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更新时间:2026/8/22 3:53:33