... law of one price 一物一价法则 law of value of products 产品价值规律 legal price 法定价格 ...
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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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