单词	angle of refraction
释义	angle of refraction noun phrase : the angle between a refracted ray and the normal drawn at the point of incidence to the interface at which refraction occurs Word History First Known Use 1636, in the meaning defined above Medical Definition angle of refraction noun : the angle between a refracted ray and the normal drawn at the point of incidence to the interface at which refraction occurs
随便看	excerption excerptions excerptor excerptors excerpts excess excess condemnation excess insurance excess reinsurance excess-loss reinsurance excess-profits tax excessed excesser excesses excessest excessing excessive excessively excessiveness excessivenesses exch exchange exchange (for) exchange charge exchange control

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