酸碱度的例句（酸碱度在句子中的用法）

• What's the scale that's used to compare the strength of acids and alkalis? 用何种标准来比较酸碱度？
• A pH test measures the acidity or alkalinity of a substance. pH值测试可检测物质的酸碱度。
• ...the pH of sea water... 海水的酸碱度
• Pure water is neutral with a pH of 7. 纯水是中性的，酸碱度为7。