| 单词 | optical analysis | 
| 释义 | optical analysis [`äp·tǝ·kǝl ǝ`nal·ǝ·sǝs]  OPTICS Study of properties of a substance or medium, such as its chemical composition or the size of particles suspended in it, through observation of effects on transmitted light, such as scattering, absorption, refraction, and polarization.  | 
	
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