可见度的英文：
visibility

CaVU=Ceiling and Visibility Unlimited
无云及可见度极好

The big rafter is visible in this room.
这间屋子粗大的椽子可以看得见。

The diagonal effect will remain visible.
斜纹效果线依然可见。

They had no visible means of subsistence.
他们生计无着。

We do not always find visible happiness in proportion to visible virtue
我们会发现可见的幸福不一定与可见的美德成比例

The water is clear and plenty of fish are visible.
水清澈见底，能看见许多鱼。