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氢离子浓度指数 qīnglízǐ nóngdù zhǐshù
agric. hydrogen ion exponent
earth.sc. hydrogen-ion exponent pH
氢离子浓度指数用以表示溶液的酸碱度 qīnglízǐ nóngdù zhǐshù
gen. value of power of hydrogen logarithm of the reciprocal of the hydrogen ion concentration in gram-molecules per litre
氢离子 浓度 指数: 3 phrases in 1 subject
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