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value of power of hydrogen
génér. pH 值 (logarithm of the reciprocal of the hydrogen ion concentration in gram-molecules per litre)
value of power of hydrogen logarithm of the reciprocal of the hydrogen ion concentration in gram-molecules per litre
génér. pH 值氢离子浓度的倒数,用以表示溶液的酸碱度; 氢离子浓度指数用以表示溶液的酸碱度