focal meaning in English
adj.
1.【物理学】焦点的,(集中)在点上的,有焦点的。
2.【医学】病灶的,病灶性的。
adv.
-ly
Examples
- A typical lens has a focal length(f)of 625 mm .
常见镜头的焦距(f)为625毫米。 - The focal depth was about 6 mi .
震源深度约6哩。 - As a result, the focal lengths in these planes will be different .
结果,这两个平面内的焦距将不同。 - The focal length of a given lens is different for different colors .
一个特定的透镜的焦距因颜色的不同而不同。 - The baker super-schmidt camera can operate with extremely low focal ratios .
Baker超施密特照相机则能以非常低的焦比工作。