[ˌpɜːtə'beɪʃn][ˌpɜːrtər'beɪʃn]
  • n. 扰动(微扰;波动;破坏;摄动)
  • 记忆方法

    词源记忆法
    来自 perturb, 使焦虑,不安。

    双解例句

    noun(名词)
    1. [ U ] 担心;烦恼
    2. [ C or U ] 摄动;扰动

      Perturbations in the orbit of the planet Uranus led to the discovery of Neptune in 1846.

      天王星轨道的摄动使人们于1846年发现了海王星。

    小知识

    When you're on an airplane with your friend who's terrified of flying, you'll be able to sense her perturbation, even if she doesn't say a word about how scared she is. The noun perturbation means “anxiety or uneasiness.”

    Perturbation means “a state of agitation,” or it can refer to whatever's causing the anxiety. Your brother's weird haircut could be the perturbation that's upsetting your mom at Thanksgiving dinner. It usually means a personal feeling of upset or nervousness, but perturbation can also be a physical disruption of some kind, like a perturbation in a river that makes the water become choppy and dangerous. In astronomy, perturbation is a change caused by the gravitational pull of a celestial body.

    常用短语

    1. perturbation method

      [化]微扰法,微扰理论

    2. perturbation theory

      微扰理论;摄动理论

    3. perturbation equation

      扰荡方程,扰动方程

    单词用法

    词组短语
    perturbation method[化]微扰法,微扰理论;perturbation theory微扰理论;摄动理论
    词源考究
    来自perturb,使焦虑,不安。

    词根词缀

    词根: turb

    =stir,表示”搅动,混乱”

    • adj.

      perturbative 扰乱性的

      perturb[n.烦乱,扰乱]+ative……的→adj.扰乱性的

      turbid 混浊的,紊乱的

      turb搅动,混乱+id表形容词→搅动的→混浊的

      turbulent 狂暴的,无秩序的

      turb搅动,混乱+ulent多……的→adj.狂暴的,无秩序的

      imperturbable 冷静的,沉着的

      im不+perturb[n.烦乱,扰乱]+able……的→不受扰乱[影响]

    • n.

      disturbance 动乱,骚乱,干扰

      disturb[v.扰乱,妨碍,使不安]+ance表名词→n.动乱,骚乱,干扰

      perturbation 动摇, 混乱

      perturb[n.烦乱,扰乱]+ation表名词→n.动摇, 混乱

      perturb 烦乱,扰乱

      per贯穿+turb搅→直搅乱→扰乱

      turbulence 骚动;强烈而不稳定的气流/水流

      turb搅动,混乱+ul+ence表名词→骚动

      turbine 汽轮机,涡轮机

      turb搅动,混乱+ine物,机器等→n.汽轮机,涡轮机

      turmoil 混乱,骚乱

      tur=turb搅动,混乱+moil翻腾→搅动,翻腾→混乱

    • v.

      disturb 扰乱,妨碍,使不安

      dis分开+turb搅动,混乱→搅开了→搅乱了

    同义词

    disturbance  /  haste  /  disorder  /  tension

    同根词

    词根:perturb

    vt.

    perturb扰乱;使…混乱;使…心绪不宁