focus意思

1. （活动、注意力、兴趣等的）焦点，中心，重点，集中点
2. 【地震学】震源
3. 【物】焦点
4. 【光】聚焦，对光；对焦点，聚光点，成像清晰点
5. 【光】（镜头的）焦点，焦距
6. 清晰，明确
7. 【医】病灶
8. 【数】（椭圆的）焦点

1. 集中，使集中于一点
2. 使聚焦，使集中于焦点，特别关注
3. 调焦，调（眼睛、镜头等的）焦距，定…的焦点；使（眼睛）注视
4. 于小区域
5. 使清晰
6. 聚焦，集中于焦点，注视

1. vt. & vi. (使)集中 concentrate
2. vt. & vi. 聚集于 come together at a focus; adjust an instrument, etc. so that it is in focus
3. vt. & vi. 调整(镜头,眼睛)焦点或焦距以便看清 adjust (a lens, the eye, or lens-like device) to make a clear image

1. [C]焦点,焦距; 中心 the point at which beams of light or heat or waves of sound meet after their direction has been changed; a center of attention

1. 焦距：PART 1 数码相机剖析篇 单元1 像素点(pixel) 单元2 拍摄尺寸 (分辨率) 单元3 感光组件--CCD VS CMOS 单元4 光圈(Aperture) 单元5 快门(Shutter) 单元6 焦距(Focus) --定焦与变焦 单元7 对焦模式 单元8 测光模式 单元9 感光

2. 专一化：企业成功的三种基本战略, 有三种提供成功机会的基本战略方法,可能使公司成为同行中的佼佼者: 总成本领先(overall cost leadership)战略 差异化(differentiation)战略 专一化(focus)战略 有时公司可能成功地寻求一种以上的方法作为其基本目标,

3.

3.focus：fiber optic connection universal system; 光纤连接通用系统

4.focus：federation on computing in the united state; 美国计算联盟（国际信息处理联合会属下）

focus on (v.+prep.)

把…作为兴趣中心 like sth most
focus on sth

A near-sighted person cannot focus accurately on distant objects.

一个近视的人不能够准确地调节眼睛以看到远处物体。

focus sth on sth

He focused the sun's rays on a paper with a burning-glass.

他用一面凸透镜把阳光聚焦在纸上。

If you focus bright sunlight on dry wood with a glass, it will start burning.

假如你用镜子将强烈的阳光聚焦于干燥的木头上,它便会燃烧起来。

focus on sth/v-ing

Today we're going to focus on the question of homeless people.

今天,我们主要讨论无家可归者的问题。

Many firms are focusing on increasing their markets overseas.

许多商行都在注意在国外扩大市场。

focus sth on sb/sth

He focused his mind on his lessons.

他把心思集中在功课上。

You should focus your attention on your work.

你应该聚精会神地工作。

We must focus our attention on the question of reducing costs.

我们必须将注意力集中在降低费用的问题上。

When the coin failed to appear, attention was focused once more on poor Lebeau.

当找不到那枚古币以后,大家的注意力再次转到勒保身上。

All eyes were focused on him when he came in.

他进来时大家都注视着他。

focus on sth/v-ing

Today, we're going to focus on the relationship between freedom and necessity.

今天,我们将集中讨论自由和必然之间的关系这一问题。

This year our meeting focuses on the question of children's rights.

今年我们会议的中心问题是儿童权益问题。

The show focuses on making fun of politicians.

这场演出旨在嘲弄那些政客。

• The orbit of a planet..is a broad ellipse in which the sun is..at one focus.

  出自：J. Bronowski

• I raised the beam of my flashlight.., I focused it..on the hole in the yellow ceiling.

  出自：R. Bradbury

• Guy tilted forward his glasses and tried to focus the spectacle before him.

  出自：O. Manning

• He took a little time to focus his eyes properly and decide who I was.

  出自：C. Achebe

• Electrons can be focussed into narrow beams by electrostatic or magnetic lenses.

  出自：H. M. Rosenberg

• I focused much of my distemper on London: I noticed only its bad qualities.

  出自：C. Priest

1. focus用作名词时原始意义是“火炉”,引申为“焦点”,转化为动词则为“(使)聚焦”,“(使)集中”。即“调整…的焦点或焦距以便看清”,引申则表示“使(注意力等)集中于某物”。
2. focus用作及物动词时,可以接望远镜、焦点等作宾语,也可以接阳光等作宾语,还可以接目光等作宾语。focus用于比喻作“致力于”解时,则可以接mind, attention等作宾语。
3. focus也用作不及物动词,这时常和介词on连用,表示“聚焦于…”“致力于…”等。

1. focus on sth表示“集中于某事”；
2. focus作“中心，焦点”的解释时，用词范围很广，常被滥用，需注意。