定义
描述物质(内部)吸光率的一个指标。如果该物质的单位透射量是 t,吸收系数(a)就是:
a = 1 – t
English Expresstion
absorption coefficient
Definition
An indicator of a material’s internal absorptance. If the unit transmission of the material is t, the absorption coefficient (a) is:
a = 1 – t
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