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。

youdao

It occurs as a white to off-white, crystalline solid, poorly soluble in water, dilute acid and most organic solvents.

本品（炎痛息康）为白色至类白色结晶固体，难溶于水、稀酸及大多数有机溶剂中。

youdao

The earlier resin technology was based on resins which contained acid groups. These could be neutralized to allow them to become soluble in water.

早期的树脂制造技术都是以含酸基团的树脂为基础，中和后，他们可以溶于水。

youdao

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

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