| 释义 |
pH.pi:5eItFn [C usually sing]a number which shows how strongly acid or ALKALINE a substance is, in a range from 0 to 14pH值Below pH 6.5 is acid, above pH 7.5 is alkaline. pH值低于6.5 的为酸性，高于 7.5的为碱性。The soil in our garden has a low/high pH.我们花园里土壤的pH值低/高。I always use a pH-balanced shampoo.我经常使用pH值中和的香波。
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