parallel rays

 
  • 平行光線(xiàn)

parallel rays的用法和樣例:

例句

  1. The condition of the normal eye when parallel rays are focused exactly on the retina and vision is perfect.
    屈光正常當平行光線(xiàn)恰好聚焦于視網(wǎng)膜并形成清晰視覺(jué)時(shí)正常眼睛的狀態(tài)
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