dispersion

IPA/dɪˈspɜːʃn/
KK[dɪspˈɚʒən]IPA/dɪˈspɜːrʒn/

dispersion — 名詞

1. the movement of people, animals, or things away from a central point, so that th

1.名詞B2
釋義

分散；擴散

人或物向四周擴散的過程

the movement of people, animals, or things away from a central point, so that they spread out over a larger area

例句

The dispersion of the crowd after the concert took less than fifteen minutes.

演唱會結束後，人群的分散花了不到十五分鐘。

dispersion of + crowd/group

Scientists measured the dispersion of pollen from the sunflower field across nearby farmland.

科學家測量了花粉從向日葵田向附近農田擴散的情況。

dispersion of + natural particles

常見搭配
  • population dispersion
  • seed dispersion
  • crowd dispersion
  • urban dispersion
  • wide dispersion
  • rapid dispersion
同義詞
  • dispersal

    more common for living things such as animals or seeds; otherwise very similar

  • scattering

    less formal; suggests random or unplanned spreading

  • diffusion

    focuses on gradual mixing through a medium, often used in science

  • distribution

    broader term; implies an arranged or measured spread rather than chaotic scattering

反義詞
  • concentration

    the act of gathering things together in one place

  • collection

    bringing items or people into a single group

文法句型

dispersion of + noun phrase

用法筆記

Uncountable. 'Dispersal' is more common for living organisms, while 'dispersion' also covers particles and physical phenomena. Frequently used in academic and formal writing.

常見錯誤

There was a wide dispersion of the seeds by the wind.
The seeds were widely dispersed by the wind.
'dispersion' as a noun is uncountable; do not use 'a' before it.
The dispersion of the group happened very quick.
The dispersion of the group happened very quickly.
use an adverb, not an adjective, to modify the verb.

2. the effect produced when white light is split into its different colours — for e

2.名詞C1
釋義

色散

白光被分離成不同顏色的現象

the effect produced when white light is split into its different colours — for example, when it passes through a prism, water droplets, or similar objects

例句

A glass prism demonstrates the dispersion of white light into a full spectrum of colours.

玻璃稜鏡展示了白光被分散成完整光譜的色散現象。

prism demonstrates dispersion of light

Lakshmi's physics project explained how dispersion causes the colours in a rainbow to appear.

Lakshmi 的物理作業解釋了色散如何讓彩虹的顏色出現。

常見搭配
  • chromatic dispersion
  • light dispersion
  • dispersion of light
  • refractive dispersion
  • modal dispersion
同義詞
反義詞
  • convergence

    the act of rays coming together rather than separating

文法句型

dispersion of + light/white light

用法筆記

Uncountable. A specialised term in physics and optics. Do not confuse with 'refraction' (the bending of light) or 'diffraction' (the spreading of waves around obstacles) — dispersion specifically refers to the separation into colours.

常見錯誤

A rainbow is caused by the refraction of sunlight in raindrops.
A rainbow is caused by the dispersion of sunlight in raindrops.
refraction is the bending; dispersion is the splitting into colours.

同根字

  • disperse
    動詞B2
  • dispersed
    形容詞B2
  • dispersal
    名詞C1
  • dispersive
    形容詞C1

常見搭配

名詞搭配

  • rate of dispersion
  • pattern of dispersion
  • degree of dispersion
  • point of dispersion

常用片語

  • cause dispersion
  • lead to dispersion
  • result in dispersion
  • measure dispersion

介系詞搭配

  • dispersion of