It USES distilled water and alcohol to refine water soluble acid and alkali of sample and then test the extractive with PH indicator.

用蒸馏水或乙醇水溶液抽提试样中的水溶性酸或碱，然后用酸度计或指示剂对抽提物进行测定。

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The samples were taken regularly to determine fatty acid, soluble acid, reducing sugar, non-reducing sugar, viscosity and peroxidase.

定期取样，测定大米的脂肪酸、水溶酸、还原糖、非还原糖、粘度和过氧化物酶活性的变化。

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It introduces how to synthesize acrylic acid, acrylate and phenylethene quadripolymer into alcohol-soluble acrylic resin.

它介绍了丙烯酸、丙烯酸脂、苯乙烯四元共聚合成醇溶性聚丙烯酸脂类的方法。

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And then linked to the glycerol instead of a third fatty acid chain is a water soluble molecule, like a salt.

但连到甘油上的第三个基团不是脂肪酸链,而是一种水溶性的分子,像盐一样

耶鲁公开课 - 生物医学工程探索课程节选

And they wanted to use a soluble salt of citric acid, so they could have used sodium, they could have used potassium.

而且他们想用一种柠檬酸的可溶性盐，他们本可以用钠，也可以用钾。

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The fascinating part about this layer is that it solves the problem for phospholipids about how to exist in water when half of you wants to be in oil, and that the water soluble part of the top leaflet here, of the top points up into the water, and the fatty acid chains point down.

这层膜的迷人之处在于,它解决了磷脂,如何存在于水中和油脂中的问题,水溶性的顶端部分,向上插入水中,而脂肪链则指向下

耶鲁公开课 - 生物医学工程探索课程节选

Because water molecules can hold on to these malonic-acid handles, the result (known as a carboxyfullerene) is water-soluble.

ECONOMIST: Carbon balls to a radical rescue