[分化]石蕊试纸

litmus papers───[分化]石蕊试纸

letter paper───信纸

linen paper───亚麻布纸；布纹纸

tissue paper───棉纸，薄纸

airmail paper───航空纸

albumen paper───蛋白纸

kitchen paper───n.厨房用纸

letter papers───信纸

tissue papers───棉纸，薄纸

They turn blue litmus paper red.───他们把蓝色石蕊试纸变红.

Litmus paper can be used as an indicator of the presence of acid in a solution.───石蕊试纸可用以测试溶液是否含酸.

Litmus paper turns red in the presence of an acid.───石蕊试纸遇到酸就变红。

the form of a water solution or as litmus paper, it is the oldest and most-used indicator of whether a substance is an acid or a Base.───的水溶液，或者做成石蕊纸后，是最古老和最常用的指示剂，可以指示一种物质是酸还是碱。

We have no litmus - paper, but, see, here they come with the syrup of violets.───我们没有蓝色试纸，但是，听！他们拿堇菜汁来了。

Litmus paper turns red on contact with an acid.───石蕊试纸遇酸度会变红.

Ammonia gas NH 3 is colorless which can turn wet red litmus paper to blue.───氨气是无色的,它可把湿的红色石蕊试纸变成蓝色.

Test: turns blue litmus paper red.───做个试验吧,能把蓝色的石蕊试纸变成红色.

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.

Litmus paper turns red on contact with an acid.

We test the liquid for acidity with a strip of litmus paper.

Test: turns blue litmus paper red.

Litmus paper can be used as an indicator of the presence of acid in a solution.

The use of litmus paper furnishes another example of such a transformation.

They turn blue litmus paper red.

In a drawer the litmus paper mused upon which way to turn.

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Litmus paper turns red in the presence of an acid.