focal是什么意思 focal的用法 focal怎么读

focal

英 ['fəʊk(ə)l]美 ['fokl]

adj. 焦点的，在焦点上的；灶的，病灶的

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中文词源

focal 焦点的

来自focus, 焦点。

英语词源

focal (adj.)

"of or pertaining to a focus," 1690s, from Modern Latin focalis

; see focus (n.) + -al (1).

权威例句

1. In rural areas, the school is often the focal point for the local community.

在农村，学校常常是当地社区的活动中心。

2. The brochure described the library as the focal point of learning on the campus.

这本小册子把图书馆形容为校园学习的中心。

3. Consequently, even as the blogosphere continues to expand, only a few blogs are likely to emerge as focal points.

结果，尽管博客圈继续扩大，但仅有少数的博客有可能脱颖而出，成为关注的焦点。

4. A typical lens has a focal length ( f ) of 625 mm.

常见镜头的焦距 ( f ) 为625毫米.

5. 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.

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