平行光线的英文
infinite ray
parallel rays
例句与用法
- The condition of the normal eye when parallel rays are focused exactly on the retina and vision is perfect
屈光正常当平行光线恰好聚焦于视网膜并形成清晰视觉时正常眼睛的状态 - A range in relation to an optical system , such as a camera lens , representing distances great enough that light rays reflected from objects within the range may be regarded as parallel
（聚焦区）无限远与光学系统（如照像镜头）有关的一个范围，表示距离是如此之远，以至于从在这一距离的物体上反射回来的光可以视为平行光线
