In 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.

它的水溶液，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。

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Firstly, a solvus of L-lysine was ploted and the conditions by which a crystal was grown out of a water solution and an ethanol solvent were investigated.

首先制出赖氨酸溶解度曲线，探索以水溶液和乙醇溶剂中结晶的条件；

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Mix a 50/50 solution of isopropyl alcohol and water into a small spray bottle if you've got one—if not, just dab your cloth into the solution.

将 50/50 的异丙醇和水混合到一个小喷雾瓶中，如果你有的话——如果没有，就把你的布轻拍入溶液中。

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Add the solution to a metal pan of cool water.

VOA: special.2010.08.02

Jell-o is just a hydrated solution of collagen and it contains a lot of water.

吉露果冻就是一种水合的胶原蛋白溶液,它含水极多

耶鲁公开课 - 生物医学工程探索课程节选

It ordered the company to provide a permanent water solution for families whose wells are polluted.

VOA: standard.2010.01.02

Ten minutes after the scanning began, participants were given a water solution containing dextrose, a type of sugar.

BBC: Obesity

Might a clever candidate champion a solution to the water problem?

ECONOMIST: London��s sinking

In creating his "fungus accretion" vases, Simon brushed the rough surface of a ceramic vase with a clay-and-water solution until it built upon itself like a hand-dripped sand castle.

WSJ: The Wonder Twins of the Design World: Nikolai and Simon Haas | Designers