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- He suffers from an optical defect. 他有视觉障碍。
- Move the glasses slowly across the line.If it seems to wiggle, sway or curve, the lenses contain an optical defect and should be replaced with another pair. 拿着眼镜慢慢的横向移动，如果这些直线看上去摇晃或歪曲，那么镜片有光学瑕疵，需要换一个。
- He has an optical defect. 他有种视力缺陷。
- An optical defect. 视觉缺陷
- His optic nerve was hurt in an accident. 他的视神经在一次事故中受到损伤。
- Microscopes and telescopes are optical instruments. 望远镜和显微镜是光学仪器。
- The optic theory originated with Einstein. 光学理论是爱因斯坦首创的。
- A mirage is an optical illusion. 海市蜃楼是一种视错觉。
- A system of optical components that magnifies. 能起放大作用的一组光学元件
- Showing no optical activity in polarized light. 无旋光的极化光下无光学反应的
- The optical system of the eye stimulate cell of the retina. 眼睛的视觉系统刺激视网膜内的细胞。
- An imperfect image caused by a physical defect in an optical element, as in a lens. 色差由于光学器件(如透镜)的物理缺陷而造成的不完美成象
- I thought I saw a ghost but it was just an optical illusion. 我以为我看见鬼了，其实只是一种幻觉。
- They concentrated on better definition of the optical image. 他们致力于提高该光学影像的鲜明度。
- The optical system of the eye stimulates cells of the retina. 眼睛的视觉系统刺激视网膜内的细胞。
- an optical defect 视觉缺陷
- Light stimulates the optic nerve. 光刺激视神经。
- One that sells lenses, eyeglasses, and other optical instruments. 眼镜商，光学仪器商出售光学仪器、眼镜或其它光学仪器的人
- optical defect 光缺陷,光疵
- A light-sensitive unit used with an optical arrangement for scanning images. 与光学装置一起用来扫描图象的一种光敏装置。
