focal length meaning in English
焦点距离
焦距透镜的
局部长度
Examples
- 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 focal length of the camera lens plays an important role in photo criteria .
摄影机镜头的焦距在摄影规范中起着重要的作用。 - The unsteadiness of air becomes prohibitive only if instruments with large focal length are used .
只有在使用长焦距的仪器时，才不允许空气的不稳定。 - The focal length of the conelensing lens should be such that the image of the source just fills the projecting lens .
聚光透镜的焦距应使光源的像正好照满放映透镜。