dispersion

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数据源: ai_enrichment
指物质、光线或人群等从中心点向四周扩散、分散或散布的过程或状态,常用于物理、化学和统计学领域。

用法要点

介词搭配

常与介词 'of' 连用,表示分散的对象或内容,如 'dispersion of light'(光的色散)。也可用 'in' 表示在某个范围内的分散,如 'dispersion in the population'(人口中的分散)。

• dispersion of particles
• dispersion in the data
• dispersion across regions

句型结构

通常作为名词使用,在句子中作主语、宾语或介词宾语。常见句型包括 'The dispersion of...' 或 'There is a dispersion...',用于描述分散现象。

• The dispersion of seeds helps plants spread.
• There is a high dispersion in the sample.
• We observed the dispersion of the crowd.

语域说明

主要用于学术、科技和正式语境,如物理学中的光色散、化学中的分散作用、统计学中的离差。在日常对话中较少使用,但可用于描述人群或事物的散布。

• optical dispersion in physics
• dispersion of pollutants in chemistry
• statistical dispersion in data analysis

基础例句

The dispersion of seeds by wind helps plants grow in new areas.

风传播种子有助于植物在新区域生长。

There was a wide dispersion of people at the park during the festival.

节日期间,公园里的人群分布很广。

We noticed the dispersion of smoke from the chimney into the air.

我们观察到烟从烟囱扩散到空气中。

高级例句

In optics, the dispersion of light through a prism separates it into different colors.

在光学中,光通过棱镜的色散将其分离成不同颜色。

The statistical dispersion in the dataset indicates high variability among the values.

数据集中的统计离差表明数值间存在高度变异性。

Chemical engineers study the dispersion of nanoparticles in solutions for industrial applications.

化学工程师研究纳米颗粒在溶液中的分散作用,以用于工业应用。

高频搭配

verb

cause dispersionmeasure dispersionreduce dispersionobserve dispersionincrease dispersion

adjective

high dispersionlow dispersionoptical dispersionstatistical dispersionwide dispersion

noun

light dispersionparticle dispersionpopulation dispersiondata dispersiondispersion effect

adverb

widely dispersedevenly dispersedrandomly dispersedrapidly dispersed

preposition

dispersion ofdispersion indispersion acrossdispersion through

phrase

dispersion of lightdispersion of seedsdispersion of forcesdispersion of wealth

常见错误

❌ 错误:The dispersion of the students are high.
✓ 正确:The dispersion of the students is high.

错误在于主谓不一致。'dispersion' 是单数名词,谓语动词应用 'is',而不是 'are'。改正后句子更符合语法规则。

❌ 错误:He dispersion the crowd quickly.
✓ 正确:He dispersed the crowd quickly.

错误在于词性混淆。'dispersion' 是名词,不能直接作动词。应使用动词形式 'dispersed' 来表示分散的动作。

近义词辨析

scattering

'scattering' 更强调随机或不规则的分散,常用于描述颗粒或物体的散开;而 'dispersion' 更中性,可指有规律或无规律的扩散,多用于科技语境。

The scattering of leaves in the wind was beautiful, while the dispersion of data points showed a clear pattern.

distribution

'distribution' 侧重于事物在空间或时间上的分配或布局,可能是有意的安排;'dispersion' 则更强调从中心向外的扩散过程,不一定涉及控制。

The distribution of resources was planned, but the dispersion of rumors happened spontaneously.