focal length
US /ˈfoʊ.kəl ˌleŋθ/
UK /ˈfoʊ.kəl ˌleŋθ/
名词
1.
焦距
the distance from the center of a lens or curved mirror to its focal point
示例:
•
Adjusting the focal length changes the magnification of the image.
调整焦距会改变图像的放大倍数。
•
A longer focal length results in a narrower field of view.
更长的焦距会导致更窄的视野。
在 Lingoland 学习这个单词