Acid value and hydroxyl value are two pieces of characteristic value of the purpose products and the experiment adopts the titrimetric law of acid and alkali to confirm them.
酸值和羟值是目的产品的两个特征值，实验采用酸碱滴定法来确定两个特值。
Acid value and hydroxyl value are two pieces of characteristic value of the purpose products and the experiment adopts the titrimetric law of acid and alkali to confirm them.
酸值和羟值是目的产品的两个特征值，实验采用酸碱滴定法来确定两个特值。
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