pH
US /ˌpiːˈeɪtʃ/
UK /ˌpiːˈeɪtʃ/
名词
pH值, 酸碱度
a measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale usually runs from 0 to 14.
示例:
•
The ideal pH for swimming pool water is between 7.4 and 7.6.
游泳池水的理想pH值在7.4到7.6之间。
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Lemon juice has a low pH, making it acidic.
柠檬汁的pH值很低，使其呈酸性。