Sentences containing 溶
When investigating the pH (acidic, neutral, alkaline) of a liquid, don't soak the litmus paper completely in the liquid but just put the end of the paper in it.
These solvents, due to their volatility, evaporate into the atmosphere when used.
Vaporise the solvent from the liquid. What's left is the perfume component and a lump of vegetable wax.
