单词 | 酸碱度 |
释义 | 〔pH〕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 commonly in use ranges from 0 to 14.酸碱度:溶液酸性或碱性的度量,数值等于7的为中性溶液,数值增大表示碱性增大,数值减小表示酸性的增大。PH值范围一般在0到14之间 |
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