refract
refract
verb
verb
- [with obj.](一般作 be refracted)(of water, air, or glass) make (a ray of light) change direction when it enters at an angle
（水、空气或玻璃）使（光线）折射
the rays of light are refracted by the material of the lens.
光线经镜片材料而折射。
■measure the focusing characteristics of (an eye) or of the eyes of (someone)
验光（测定眼睛屈光度）
- early 17th cent.: from Latin refract- 'broken up', from the verb refringere, from re- 'back' + frangere 'to break'
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