PH
01
pH值
a quantitive mesasure used for determining how acidic or alkanic something is on a scale of 0 to 14
例子
Lemon juice has a pH of 2, making it highly acidic.
柠檬汁的pH值为2，使其呈高度酸性。
Pure water is neutral with a pH of 7.
纯水是中性的，pH值为7。
