Japanese DictionarySentences containing 酸性
Since primary school we've been checking for the qualities known as acidity and alkalinity with litmus paper.
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.
The auditorium is terribly stained. It is, in part, due to acid rain.
The outside walls of the auditorium are terribly stained. It is, in part, due to acid rain.
