什么是material Optical Density?

Optical Density Absorption Parameters dZ9[wkn  

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Load -- Displays the Open dialog box so that you can find and select an existing file containing the wavelength and optical density values. L'J$jB5 cP

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The example below shows the format for an optical density file. t&mw@bj  
Data file for optical density {O5;V/00}  
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dataname: Optical Density Values (
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datapairs: wv od p W:[Q\rSj  
400 .023 qdCa]n!d  
500 .332  8yOzD  
600 .4 :)g=AhBF  
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