### focal

• adj. 焦点的，在焦点上的；灶的，病灶的

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focal 焦点的

focal (adj.)
"of or pertaining to a focus," 1690s, from Modern Latin focalis; see focus (n.) + -al (1).
1. In rural areas, the school is often the focal point for the local community.

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

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

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

5. As a result, the focal lengths in these planes will be different.

[ focal 造句 ]