First, a working curve must be made according to the colour gradation data and then the density of the substances is found out with the help of the extinction value of the water samples on it.
依据色阶数据制成工作曲线，再依水样的吸光值从工作曲线找出对应的物质浓度。
This paper introduces a new method which can obtain the extinction value linear to the concentration for the atomic absorption spectrometry (AAS) and atomic resonant fluorescent spectrometry (ARFS).
提出一种使原子吸收与原子共振荧光光谱分析均能得到与被测元素浓度成线性关系的消光值的方法。
In the neoteric and modern civil laws descending from Roman law, drawing has shown its value as one of reasons and means for the extinction of debt.
罗马法以降的近代民法和现代民法中，提存都作为一项债的消灭原因与方式的制度流传下来，显示出其存在的价值。然而我国的提存立法规定甚少，操作困难。
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