1·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。
2·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。
3·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。
4·The degree of acidity or alkalinity of any solution, then, can be most conveniently expressed by the PH system.
因此 ，任何溶液的酸碱度都可以用PH体系来表示。 采用这种方法极为方便。
5·Diseases can be prevented or reversed by increasing the alkalinity of the terrain.
通过增加内环境的碱性，疾病可以被防止或者逆转。
6·Titration or neutralization degree method is used to control the alkalinity and insures the uniform of reaction system.
反应过程中应用滴定或中和度的方法控制碱度，保证反应体系的均一。
7·Under the same total alkalinity, the absorbing rate of the regenerated spent caustic liquid (or mass transfer factor) is directly related with the OH concentration.
在相同的总碱度下，再生废碱液的吸收速率(或传质系数)与OH _ -的浓度直接相关。
8·Under neutral condition capsaicinoids is the stablest, recta-acid or leaning alkalinity are stronger, more disadvantageous to capsaicinoids.
在中性条件下辣椒素最稳定，偏酸或偏碱性越强，越不利于辣椒碱。