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refraction

noun
🔊/rɪˈfrækʃn/
🔊/rɪˈfrækʃn/
 [uncountable] (physics物理)
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  1. the fact of light, radio waves, etc. changing direction when they go through water, air, glass, etc. at an angle
    • The degree to which the light changes direction is called the angle of refraction.光改变方向的程度称为折射角。
    Topics Physics and chemistryc2