主点 meaning in English
photo center
principal point
Examples
- Bear in mind that the chief ray is now principal ray .
记住，此时主光线就是主点光线。 - The principal points of a thin lens coincide at the center of the lens .
薄透镜的两个主点与透镜中心相重合。 - Secondary principal point
第二主点 - Primary principal point
第一主点 - Ground principle point
地面主点