Quantitatively : reciprocal of the value ( generally in minutes of arc ) of the angular separation of two neighboring objects ( points or lines ) which the eye can just perceive as being separate 定量方面：任一空间分辨力的测定结果，例如观测者恰可察觉分离的两个相邻物体（点或线或其他特定刺激）的用弧分表示的角度间隔的倒数。
