line of vision [光] [生理] 视线 ; 视向
Any crack in a car windshield always seems to be right in the driver's line of vision.
汽车挡风玻璃上的任何一条裂缝看起来总是正对司机的视线。
If a floater appears directly in your line of vision, try moving your eye up and down.
如果浮子出现直接在您的生产线的视野，尝试移动您的眼睛向上和向下。
In perspective rendering one of several imaginary planes perpendicular to the line of vision between the viewer and the object being depicted.
轮廓，平面图概略在透视的图表中，与被描述的观察者和物体之间的视觉线垂直的虚构位面之一。
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