单词 | pH |
释义 | pH From Longman Dictionary of Contemporary English ChemistrypHpH /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 → litmus testpH of soil with a pH of 3.1Origin pH (1900-2000) German potenz “power” + H, sign for hydrogen |
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