消光系数

extinction ratio的用法和样例：

例句

The extinction spectra of two species of microalgae suspension were inspected.研究了两种微藻液消光系数的波长分布特征。
The molecular extinction coefficient is equal to the ratio of the log of the intensity of the incident and emergent light.分子的消光系数等于入射光和透射光强度对数的比。

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