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English definition of “incident ray”

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incident ray

noun [C] uk   specialized us  
in physics, a ray of light that hits a surface
Translations of “incident ray”
in Chinese (Traditional) 入射線(物理學中,照射到表面的光線)…
in Chinese (Simplified) 入射线(物理中,照射到表面的光线)…
(Definition of incident ray from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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