| 释义 |
Related topics: ChemistrypH /piː ˈeɪtʃ/ (also pH value) noun [singular] HCa number on a scale of 0 to 14 which shows how acid or alkaline a substance is 酸碱度，ph值 → litmus testpH of soil with a pH of 3.1 酸碱度为3.1的土壤Origin pH (1900-2000) German potenz “power” + H, sign for hydrogenpH nounChinese |