Acid Number( AN) Milligrams of KOH required in tests to neutralize all the acidic constituents present in a l g sample of a petroleum product.是什么意思_Acid Number( AN) Milligrams of KOH required in tests to neutralize all the acidic constituents present in a l g sample of a petroleum product.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句