常見例句noun [ C usually singular ]Below pH 6.5 is acid, above pH 7.5 is alkaline. pH值低於6.5爲(wèi)酸性，高於7.5爲(wèi)堿性。The soil in our garden has a low/high pH. 我們花園裡的土壤pH值較低／高。 返回 pH