A measure of the acidity or alkalinity of a solution, numerically equal to7for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity.The pH scale commonly in use ranges from0to14.是什么意思_A measure of the acidity or alkalinity of a solution, numerically equal to7for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity.The pH scale commonly in use ranges from0to14.在线翻译_英语_读音_用法_例句