定义

透镜放大率的一种表达方式，等于明视距离（250 mm）除以等效焦距。绝对放大率是指当物体位于透镜焦点的时候产生的放大率。

English Expression

absolute magnification

Definition

The magnification equal to the distance of distinct vision (250 mm) divided by the equivalent focal length of the lens. Absolute magnification is produced when the object is at the focal point of the magnifier lens.

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