Determination of Alkalinity or Acidity 酸碱度的测定
Acidity or Alkalinity 酸碱度 ; 酸度或碱度
Acidity or alkalinity gradients pH值
Buffer a solution that resists any change in acidity or alkalinity.
可以抵抗任何酸或碱变化的溶液。
The 5 Percent Rule : Fine-tune the drinking experience with the water's acidity or alkalinity.
法则：以水的酸性和碱性微调我们喝水过程体验。
Indicator A substance used to test for acidity or alkalinity of a solution by a color change.
是一种用颜色的变化来表示溶液中酸碱程度的物质。
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